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10001.

The value of g ^(1//3) , 9 ^( 1//27)……. upto 'oo, is -

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ANSWER :3
10002.

The roots of x^(4) - 12x^(3) + 34x^(2) - 12x + 1 = 0are

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`-1, -2, -3, -6`
1,2,3,6
`-1, -2, 3, 6 `
1,2,-3, -6

Answer :2
10003.

Solve the following linear programming problems graphically : Minimise : Z = 3x + 5y subject to constraints -2x+y le 4, x+y ge 3, x-2y le 2, x, y ge 0.

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ANSWER :MINIMUM Z = `29/3" at "(8/3, 1/3)`
10004.

Which scatterplot shows a nonlinear positive association ? (Note : A positive association between two variables is one in which higher values of one variable correspond to higher values of the other variable.)

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ANSWER :C
10005.

Which one of the following statements can be informed from the table ?

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I only
II only
III only
I and II

Answer :A
10006.

If int_(-(1)/(2))^(1/2)cosx.log((1+x)/(1-x))dx=k.log2, then k =

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0
`-1`
`-2`
`1/2`

ANSWER :A
10007.

If P(A)=2/5,P(B)1/3,P(AnnB)=1/5"then find"P(barA|barB).

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ANSWER :`7/10`
10008.

If the circles (x-a)^(2)+(y-b)^(2)=r^(2), (x-b)^(2)+(y-a)^(2)=r^(2) touch each other then the point of contact is

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`((a+b)/2,(a+b)/2)`
`((a-b)/2,(a-b)/2)`
`((b-a)/2,(b-a)/2)`
(0,0)

ANSWER :A
10009.

If the normal at any point P of the ellipse (x^(2))/(16)+(y^(2))/(9) =1 meets the coordinate axes at M and N respectively, then |PM|: |PN| equals

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`4:3`
`16:9`
`9:16`
`3:4`

Solution :The EQUATION of the normal at `P(theta)` on the ellipse is
`4x sec theta - 3y cosec theta =7`
This meets the coordinate axes at
`M ((7)/(4) cos theta, 0), N (0,-(7)/(3) SIN theta)`
`:. PM^(2) = (4-(7)/(4))^(2) cos^(2) theta + 9 sin^(2) theta`
`= (9)/(16) (9 cos^(2) theta + 16sin^(2) theta)`
`PN^(2) = 16 cos^(2) theta + (3+(7)/(3))^(2) sin theta`
`= (16)/(9) (9 cos^(2) theta + 16 sin^(2) theta)`
`:. PM^(2): PN^(2) = 9^(2): 16^(2)`
`rArr |PM| : |PN| = 9: 16`
10010.

Integrate the following functions e^x(1/x - 1/x^2)

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SOLUTION :`INT e^X(1/x -1/x^2) DX`
= `e^x/x+c`,
F(x) = 1/x, `f^.(x) = -1/x^2`
10011.

The normal form of the line x+y+1=0 is

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`xcos(45^(@))+ysin(135^(@))=1/sqrt(2)`
`xcos(45^(@))+ysin(45^(@))=1/sqrt(2)`
`xcos(225^(@))+ysin(225^(@))=1/sqrt(2)`
`xcos(45^(@))+ysin(45^(@))=-1/sqrt(2)`

ANSWER :C
10012.

Match the item of list-I with those of List-II Then, which of the following is correct ?

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`{:(A,B,C,D),(v,iv,III,II):}`
`{:(A,B,C,D),(iv,v,ii,i):}`
`{:(A,B,C,D),(iv,vi,i,ii):}`
`{:(A,B,C,D),(iv,vi,ii,iii):}`

ANSWER :C
10013.

Find the sum of all 3-digit natural numbers which contain at least one odd digit and at least one even digit

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ANSWER :`370775`
10014.

Verify Property 2 for Delta=|{:(2,-3,5),(6,0,4),(1,5,-7):}|

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ANSWER :`Delta_1=-Delta`
10015.

If 4-3y+7 = 0 is a tangent ot the circle repesented by x^(2) + y^(2) -6x + 4y - 12 = 0 , then find its point of contact.

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ANSWER :(-1,1)
10016.

The product of lengths of perpendicular from any point on the hyperola x^(2)-y^(2)=16 to its asymptotes is

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2
4
8
16

Answer :C
10017.

If logx=z, then the value ofx^(2)(d^(2)y)/(dx^(2)) is -

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`(d^(2)y)/(DZ^(2))`
`(d^(2)y)/(dz^(2))+(DY)/(dz)`
`(d^(2)y)/(dz^(2))-(dy)/(dz)`
`(d^(2)y)/(dz^(2))-2(dy)/(dz)`

ANSWER :C
10018.

~p vv ~q is logically equivalent to

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`~p RARR ~q`
`p ^^ q`
`p rarr ~q`
`p HARR q`

ANSWER :C
10019.

A right solid circular cylinder of given volume will have the least total surface area when

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its HEIGHT is EQUAL to its radius
its height is equal to its diameter
its height is INDEPENDENT of its radius
its height is `3/4` TIMESOF its radius

Answer :B
10020.

If int(1 - tan 3x)^(2) dx = (1)/(3)[tan 3x+logf(x)] + C then f(x) is given by

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COS 3x
`cos^(2)3x`
`sin^(2)3x`
`cos^(3) 3x`

Answer :B
10021.

Write the component statement "57 is divisible by 2 or 3" compound statements and check whether the compound statement is true or false.

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<P>

Solution :The component statements are
p: 57 is divisible by 2
q : 57 is divisible by 3
The TRUTH VALUE of the compound STATEMENT is .True..
10022.

Let ** be a binary operation on the set Q of rational numbers as follows : a "*" b = (ab)/(4) Find which of the binary operations are commutative and which are associative.

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SOLUTION :N/A
10023.

Let P(n): 1+1/4+1/9 +….+(1)/(n^2) lt 2- (1)/(n), is true

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`AA n`
forn=1
For ` n GT I ,AA n in N`
Noneof these

Answer :C
10024.

"Evaluate "Delta ={:|( 0 , sin alpha ,-cos alpha ) ,( -sin alpha , 0 , sin beta ),( cos alpha , -sin beta, 0)|:}

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ANSWER :` =sin ALPHA sin BETA alpha -COS alpha sin alpha sin beta =0`
10025.

underset(-pi//4)overset(pi//4)int (dx)/(1+cos 2x) is equal to

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1)0
2)4
3)1
4)2

Answer :C
10026.

Match the following.{:("I) "(i)^i=,"a) "ipi//2),("II) "log_ei=,"b) "ipi//2+logpi//2),("III) "log(logi)=,"c) "sqrt2),("IV "sqrti+sqrt(-i)=,e^(-pi//2)):}

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d,a,C,d
B,c,a,d
d,a,b,c
d,c,b,a

Answer :C
10027.

int_(1)^(2) (1)/(2(1+x^(4)))dx

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ANSWER :`(1)/(4) LOG (32)/(17)`
10028.

int(x^(2)+1)/(x(x^(2)-1))dx=....

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`"LOG"(x^(2)-1)/(x)+C`
`-"log"(x^(2)-1)/(x)+c`
`"log"(x)/(x^(2)+1)+c`
`-"log"(x)/(x^(2)+1)+c`

Answer :A
10029.

Evalute the following integrals intx log (1 + x) dx

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ANSWER :`(X^(2))/(2) log (1 + x) - (x^(2))/(4) + (x)/(2) - (1)/(2) "log " (1 + x ) + c `
10030.

According to Newton's law of cooling, the rate of cooling of a body in air is proportional to the difference between the temperature of the body and the temperature of the surrounding air. If the air temperature is 20^(@)C and the body cools for 20 minutes from 140^(@)Cto80^(@)C, then the temperature will be 50^(@)C in

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30 MINUTES
40 minutes
50 minutes
60 minutes

ANSWER :B
10031.

If int (4e^(x) + 6e^(-x))/(9e^(x) - 4e^(-x))dx = Ax + B log (9x^(x) - 4e^(-x) ) + Cthen

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`A = (-19)/(36), B =(35)/(36), ` C = 0
`A = (35)/(36) , B = (-19)/(36) `, C = 0
`A = (-19)/(36) , B = (35)/(36), C in R `
`A = (35)/(36) , B = (-19)/(36) , C in `R

Answer :C
10032.

int_(0)^(oo)[(2)/(e^(x))]dx=

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`log_(E) 2`
`e^(2)`
0
`2/e`

ANSWER :A
10033.

If the line (x-4)/(1) = (y-2)/(1) = (z+k)/(2) lies in the plane 2x -4y + z =7 then k =........

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`-7`
6
`7`
`-6`

ANSWER :A
10034.

Two consecutive numbers from 1,2,3 …., n are removed.The arithmetic mean of the remaining numbers is 105/4 . The removed numbers

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LIE between 10 and 20
are less than 1500
are less than 1500
none of these

Solution :LET m and (m+1) be the removed numbers from 1,2,…,N.
Then, the sum of the remaining numbers is n(n+1)/2-(2m+1).
From given condition,
`105/4=((n(n+1))/2-(2m+1))/((n-2))`
or `2n^(2)-103n-8m+206`=0
Since n and m are integers, so n must be even. Let n=2k. Then,
`m=(4K^(2)+103(1-k))/4`
Since m is an INTEGER, then 1-k must be divisble by 4. Let k=1+4t. Then we get n=8t+2 and `m=16t^(2)-95t+1`. Now,
`1lemltn`
`rArr1le16t^(2)-95t+1lt8t+2`
Solving, we get t=6. Hence,
n=50 and m=7
Hence, the removed numbers are 7 and 8. Also, sm of all numbers is 50(50+1)/2=1275.
10035.

Let A(0,6,6), B(6,6,0) and C(6,0,6) are three points and point D is moving on the line x+z-3=0=y. If G is centroid of DeltaABC, then minimum value of GD is

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`SQRT((47)/2)`
`sqrt((37)/2)`
`sqrt((57)/2)`
`sqrt((23)/2)`

Solution :G=(4,4,4)
Let D=(a,0,3-a)
`GD^(2)=(a-4)^(2)+(0-4)^(2)+(3-a-4)^(2)`
`=2a^(2)-6a+33`.
For minimum of `GD^(2),a=3/2`
`GD_("MIN") = sqrt(2.9/4-6.3/2+33)=sqrt(57/2`
10036.

int(dx)/((x^2-1)sqrt(x^2+1))=

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`(1)/(2sqrt(2))log|(SQRT(1+X^2)+sqrt(2)x)/(sqrt(1+x^2)-sqrt(2)x)|+c`
`(1)/(2sqrt(2))log|(sqrt(1+x^2)+sqrt(2))/(sqrt(1+x^2)-sqrt(2))|+c`
`(1)/(2sqrt(2))log|(-sqrt(1+x^2)+sqrt(2)x)/(sqrt(1+x^2)+sqrt(2)x)|+c`
`(1)/(2sqrt(2))log|(sqrt(1+x^2)-sqrt(2)x)/(sqrt(1+x^2)+sqrt(2)x)|+c`

ANSWER :C
10037.

A point P is movingin a plane such that the difference of its distances from two fixedpoints in the same plane is a constant. The path traced by the point P is a/an

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CIRCLE
PARABOLA
ELLIPSE
HYPERBOLA

ANSWER :D
10038.

(i) What is the second term in the expansion of (1 + x)^(n)? (ii) Write the 3^(rd) and 4^(th) terms in the expansion of (1 + x)^(n). (iii) If the coefficients of 2^(nd), 3^(rd) and 4^(th) terms in the expansion of (1 + x)^(n) are in A.P, then show that n^(2) - 9n + 14 = 0.

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ANSWER :(i)` = nx`, (II)` = (n(n - 1)(n - 2))/6X^(3)`, (iii)` = 0`
10039.

(d)/(dx) tan^(-1) (sec x- tan x)- Find

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ANSWER :`-(1)/(2)`
10040.

A new fitness class was started at a chain of fitness clubs owned by the same company. The scatter plot above shows the total number of people attending the class during the first 5 months in which the class was offered. The line of best fit is drawn. If n is the number of the month, which of the following functions could represent the equation of the graph's line of best fit?

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`F(X)=300n+125`
`f(N)=300+125n`
`f(n)=400+150n`
`f(n)=200n+300`

ANSWER :B
10041.

If circle x^(2)+y^(2)+2gx+2fy+c=0(c gt 0) touches both the coordinate axes and lies in the third quadrant then the length of thechord intercepted by the circle on the line x+y+sqrt (c )=0 is

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`SQRT(2C)`
`C `
`sqrt(c )`
`sqrt((c )/(2))`

ANSWER :A
10042.

If x, y, z arein A.P., then the value of |{:(p + 2, p+3,p+4),(p+3,p+4,p+5),(p+ 2x,p+2y,p+2z):}| equals to

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4a
0
4a
1

Answer :B
10043.

Find the area of quadrilateral formed by 3x ^(2) + y ^(2) - 4xy + 6x - 4y + 3=0 and x ^(2) + 4y ^(2) - 4xy + 6x + 12y + 9=0

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16/3 UNITS
64/3 units
0
none of these

ANSWER :C
10044.

If x satisfies the equation x^2-2xcostheta+1=2costheta,then the value of x^n+1//x^n is

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`2^ncosntheta`
`2^ncos^ntheta`
`2COS ntheta`
`2cos^ntheta`

ANSWER :C
10045.

What is the smallest possible natural number 'n' for which the equation x^(2)-nx + 2014=0has integer roots.

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ANSWER :91
10046.

int x^(2) sin^(2)x dx =

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`(1)/(6) X^(3) + (1)/(2) [ (x^(2)sin 2x)/(2) + (xcos2x)/(2) - (sin2x)/(2) ] + C `
`(1)/(6) x^(3) - (1)/(2) [- (x^(2)sin 2x)/(2) - (xcos2x)/(2) + (sin2x)/(2) ] + c `
`-(1)/(6) x^(3) + (1)/(2) [ (x^(2)sin 2x)/(2) + (xcos2x)/(2) - (sin2x)/(2) ] + c `
`(1)/(6) x^(3) - (1)/(2) [ (x^(2)sin 2x)/(2) + (xcos2x)/(2) - (sin2x)/(2) ] + c `

ANSWER :D
10047.

If a=Sigma_(n=0)^(oo) (x^(3x))/(3n)!,b=Sigma_(n=1)^(oo)(x^(3n-2))/(3n-2!) and C= Sigma_(n=1)^(oo)(x^(3n-1))/(3n-1!) then the value of a^(3)+b^(3)+C^(3)-3abc is

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1
0
-1
-2

Answer :a
10048.

A = ((2.1,2.5,3.7),(-2.1,5.9,3.8),(0,-2.9,-3)),B=((cosalpha,sinalpha,0),(sin alpha,cosalpha,0),(0,0,-1)) ,C=((cos alpha,sinalpha,0),(-sin alpha,cos alpha,0),(0,0,1)) thensum_(k=0)^(oo)(1)/(3^(k))tr(A(BC)^(k))=________

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ANSWER :14.25
10049.

When 9​th term of A.P is divided by its 2​nd term then quotient is 5 and when 13​th term is divided by 6​thterm then quotient is 2 and Remainder is 5 then find first term of A.P. :-

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SOLUTION :GIVEN `RARR T_9=5T_2` & `T_13=2T_6+5`
so a+8d=5 (a+d) & a+12d=2(a+5d)+5
`rArr` a=3
10050.

Is the number set {0.2,-0.5,0.9,0.4} determining a probability distribution ?

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SOLUTION :As `-0.5lt0`, the given SET does not REPRESENT a PROBABILITY distribution.