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201.

If the tangent at point (1,1) on y2=x(2−x)2 meets the curve again at point P, then P is

Answer»

If the tangent at point (1,1) on y2=x(2x)2 meets the curve again at point P, then P is

202.

If the sum of the coefficients in the expansion of (a+b)n is 4096, then the greatest coefficient in the expansion is

Answer»

If the sum of the coefficients in the expansion of (a+b)n is 4096, then the greatest coefficient in the expansion is



203.

If ∫dxx+x7=p(x), then ∫x6x+x7dx is equal to (where C is constant of integration)

Answer»

If dxx+x7=p(x), then x6x+x7dx is equal to

(where C is constant of integration)

204.

If the vectors a→=i^-2j^+3k^ and b→=3i^-6j^+mk^ are collinear, then m = ________________.

Answer» If the vectors a=i^-2j^+3k^ and b=3i^-6j^+mk^ are collinear, then m = ________________.
205.

A cup of coffee cools from 90∘C to 80∘C in t minutes, when the room temperature is 20∘C. The time taken by a similar cup of coffee to cool from 80∘C to 60∘C at a room temperature same at 20∘C is -

Answer»

A cup of coffee cools from 90C to 80C in t minutes, when the room temperature is 20C. The time taken by a similar cup of coffee to cool from 80C to 60C at a room temperature same at 20C is -

206.

Let a function f is a strictly increasing and f′′(x)<0, also a,b and c are three distinct real numbers in the domain of inverse of f(x). If A=f−1(a)+f−1(b)+f−1(c)3 and B=f−1(a+b+c3), then which of the following is correct

Answer»

Let a function f is a strictly increasing and f′′(x)<0, also a,b and c are three distinct real numbers in the domain of inverse of f(x). If A=f1(a)+f1(b)+f1(c)3 and B=f1(a+b+c3), then which of the following is correct

207.

If x^2-2px+q=0 has two equal roots then the equation (1+y)x^2 -2(p+y)x +(q+y)=0 will have real and distinct roots when

Answer» If x^2-2px+q=0 has two equal roots then the equation (1+y)x^2 -2(p+y)x +(q+y)=0 will have real and distinct roots when
208.

From a point P(λ,λ,λ), perpendiculars PQ and PR are drawn respectively on the lines y = x, z = 1 and y = -x, z = -1. If P is such that ∠QPR is a right angle, then the possible value(s) of λ is (are)

Answer»

From a point P(λ,λ,λ), perpendiculars PQ and PR are drawn respectively on the lines y = x, z = 1 and y = -x, z = -1. If P is such that QPR is a right angle, then the possible value(s) of
λ is (are)


209.

In how many ways can a club consisting of 20 people choose a president, a secretary, and a treasurer?

Answer»

In how many ways can a club consisting of 20 people choose a president, a secretary, and a treasurer?

210.

If −4≤|x|≤2, then x belongs to

Answer»

If 4|x|2, then x belongs to

211.

Let f be a function defined by f(x)=x−5x−3;x≠3, fk(x) denote the composition of f with itself taken k times i.e f3(x)=f(f(f(x)))Then

Answer»

Let f be a function defined by f(x)=x5x3;x3, fk(x) denote the composition of f with itself taken k times i.e f3(x)=f(f(f(x)))

Then


212.

If limx→∞(√x2−x+1−ax−b)=0, then for k≥2, limn→∞sec2n(k! πb) is equal to

Answer»

If limx(x2x+1axb)=0, then for k2, limnsec2n(k! πb) is equal to

213.

Equation that represents the given graph is

Answer»

Equation that represents the given graph is




214.

Find the equation of the hyperbola satisfying the give conditions: Foci (±4, 0), the latus rectum is of length 12

Answer»

Find the equation of the hyperbola satisfying the give conditions: Foci (±4, 0), the latus rectum is of length 12

215.

The rank of the word SUCCESS, if all possible permutations of the word SUCCESS are arranged in dictionary order is

Answer»

The rank of the word SUCCESS, if all possible permutations of the word SUCCESS are arranged in dictionary order is

216.

The position of a particle moving rectilinearly is given by x = t^3 - 3*t^2 - 10. Find the distance traveled by the particle in first 4s starting from t=0.

Answer» The position of a particle moving rectilinearly is given by x = t^3 - 3*t^2 - 10. Find the distance traveled by the particle in first 4s starting from t=0.
217.

Show that (i) (ii)

Answer» Show that (i) (ii)
218.

How to find doman and range?

Answer» How to find doman and range?
219.

Integration of sin 4x sin x

Answer» Integration of sin 4x sin x
220.

The angle θ, 0&lt;θ&lt;π2, which increases twice as fast as its sine, is _________________.

Answer» The angle θ, 0<θ<π2, which increases twice as fast as its sine, is _________________.
221.

Let P(x)=x2+bx+c, where b and c are integers. If P(x) is a facter of both x4+6x2+25 and 3x4+4x2+28x+5, then value of P(1) is -

Answer»

Let P(x)=x2+bx+c, where b and c are integers. If P(x) is a facter of both x4+6x2+25 and 3x4+4x2+28x+5, then value of P(1) is -

222.

Probability that A speaks truth is 4/5, A coin is tossed, A reports that a head appears. the probability that actually there was head is (a) 45 (b)12 (c)15 (d) 25

Answer»

Probability that A speaks truth is 4/5, A coin is tossed, A reports that a head appears. the probability that actually there was head is

(a) 45

(b)12

(c)15

(d) 25

223.

The maximum value of sin(x+π6)+cos(x+π6) in the interval (0,π2) is attained at

Answer»

The maximum value of sin(x+π6)+cos(x+π6) in the

interval (0,π2) is attained at


224.

If the extremities of the latus rectum of the ellipse x225+y216=1 is (α,β), then the distance between the point P(1,1) and (α,β), when α&gt;0 is/are

Answer»

If the extremities of the latus rectum of the ellipse x225+y216=1 is (α,β), then the distance between the point P(1,1) and (α,β), when α>0 is/are

225.

Let (1−x+x4)10=a0+a1x+a2x2+.....+a40x40, then the correct option(s) is/are

Answer»

Let (1x+x4)10=a0+a1x+a2x2+.....+a40x40, then the correct option(s) is/are

226.

For given binary operation ∗ defined below, determine whether ∗ is binary, commutative or associative. (ii)On Q, define a∗b=ab+1

Answer»

For given binary operation defined below, determine whether is binary, commutative or associative.
(ii)On Q, define ab=ab+1

227.

If cot−1(4+24)+cot−1(4+64)+cot−1(4+124)+.....∞=tan−1(ab), where a and b are relatively prime, then

Answer»

If cot1(4+24)+cot1(4+64)+cot1(4+124)+.....=tan1(ab), where a and b are relatively prime, then


228.

State whether the following statement are true or false. Justify (ii) If ∗ is a commutative binary operation on N, then a∗(b∗c)=(c∗b)∗a.

Answer»

State whether the following statement are true or false. Justify
(ii) If is a commutative binary operation on N, then a(bc)=(cb)a.

229.

If α,β are the roots of the quadratic equation x2 – (a – 2)x –(a+1) =0, where 'a' is a variable then the least value of α2+β2

Answer»

If α,β are the roots of the quadratic equation x2 – (a – 2)x –(a+1) =0, where 'a' is a variable then the least value of α2+β2


230.

What can be the maximum number of points of a team after the second round?

Answer»

What can be the maximum number of points of a team after the second round?

231.

The term independent of x(x&gt;0, x≠1) in the expansion of [(x+1)(x2/3−x1/3+1)−(x−1)(x−√x)]10 is

Answer»

The term independent of x(x>0, x1) in the expansion of [(x+1)(x2/3x1/3+1)(x1)(xx)]10 is



232.

5 whole numbers are randomly chosen and multiplied . Then find : a) probability that last digit is 5 . b) probability that last digit is 0

Answer» 5 whole numbers are randomly chosen and multiplied . Then find : a) probability that last digit is 5 . b) probability that last digit is 0
233.

A parallelogram is constructed on 5→a+2→b and →a−3→b where |→a|=2√2, |→b|=3 and the angle between →a and →b is π4. If the magnitude of the longer diagonal is √αβγ where αβγ is three digit number then (β−α−γ) is

Answer» A parallelogram is constructed on 5a+2b and a3b where |a|=22, |b|=3 and the angle between a and b is π4. If the magnitude of the longer diagonal is αβγ where αβγ is three digit number then (βαγ) is
234.

Let f(x)=sin−1(2x√1−x2), then

Answer»

Let f(x)=sin1(2x1x2), then


235.

Write down all the subsets of the following sets: (i) { a } (ii) { a , b } (iii) {1, 2, 3} (iv) Φ

Answer» Write down all the subsets of the following sets: (i) { a } (ii) { a , b } (iii) {1, 2, 3} (iv) Φ
236.

Let S be the mirror image of the point Q(1,3,4) with respect to the plane 2x–y+z+3=0 and let R(3,5,γ) be a point of this plane. Then the square of the length of the line segment SR is

Answer» Let S be the mirror image of the point Q(1,3,4) with respect to the plane 2xy+z+3=0 and let R(3,5,γ) be a point of this plane. Then the square of the length of the line segment SR is
237.

The sum of the series S=1+2(1011)+3(1011)2+⋯ upto ∞ is equal to

Answer»

The sum of the series S=1+2(1011)+3(1011)2+ upto is equal to

238.

How many 3-digit even numbers can be formed from the digits 1, 2, 3, 4, 5, 6 if the digits can be repeated?

Answer» How many 3-digit even numbers can be formed from the digits 1, 2, 3, 4, 5, 6 if the digits can be repeated?
239.

Which of the following is an empty relation on AxB where A= {0, 2, 5}, B = {1, 4, 7}

Answer»

Which of the following is an empty relation on AxB where A= {0, 2, 5}, B = {1, 4, 7}



240.

The equation of the tangent to the hyperbola {3x^2-4y^2=12, which makes equal intercepts on the axes is

Answer» The equation of the tangent to the hyperbola {3x^2-4y^2=12, which makes equal intercepts on the axes is
241.

If the equation x^2+bx+ca=0 and x^2+cx+ab=0 have a common root and b is not equal to c then their other roots will satisfy the equation

Answer» If the equation x^2+bx+ca=0 and x^2+cx+ab=0 have a common root and b is not equal to c then their other roots will satisfy the equation
242.

sin−1{x+√1−x2√2}

Answer» sin1{x+1x22}
243.

95.Sin30 + tan 60 = what

Answer» 95.Sin30 + tan 60 = what
244.

cos1(yb)=2log(x2),x&gt;0⇒x2d2ydx2+xdydx=

Answer»

cos1(yb)=2log(x2),x>0x2d2ydx2+xdydx=



245.

Let p:2 is a prime number q:cos30∘=12 r:sec2x+tan2x=1 s:√7 is an irrational number u:π2 is greater than 10 The statement which are all false is

Answer»

Let p:2 is a prime number
q:cos30=12
r:sec2x+tan2x=1
s:7 is an irrational number
u:π2 is greater than 10

The statement which are all false is

246.

If n(A) = 7; n(B) = 9, n(A ∩ B) = 4; then n[(A × B) ∩ (B × A)] is equal to

Answer» If n(A) = 7; n(B) = 9, n(A ∩ B) = 4; then n[(A × B) ∩ (B × A)] is equal to
247.

Answer each of the following questions in one word or one sentence or as per exact requirement of the question.If the sides of a triangle are proportional to 2, 6 and 3-1, find the measure of its greatest angle.

Answer» Answer each of the following questions in one word or one sentence or as per exact requirement of the question.



If the sides of a triangle are proportional to 2, 6 and 3-1, find the measure of its greatest angle.
248.

From a pack of 52 cards, 4 are drawn one by one without replacement. Find the probability that all are aces(or kings).

Answer» From a pack of 52 cards, 4 are drawn one by one without replacement. Find the probability that all are aces(or kings).
249.

If x and yare connected parametrically by the equation, without eliminating theparameter, find.

Answer»

If x and y
are connected parametrically by the equation, without eliminating the
parameter, find.


250.

Let P(x1,y1) and Q(x2,y2) where y1,y2&lt;0, be the end points of the latus rectum of the ellipse x2+4y2=4. Then equation(s) of the parabola with latus rectum PQ is/are

Answer»

Let P(x1,y1) and Q(x2,y2) where y1,y2<0, be the end points of the latus rectum of the ellipse x2+4y2=4. Then equation(s) of the parabola with latus rectum PQ is/are