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4651.

The number of irrational terms in the expansion of (8√5+6√2)100 is

Answer» The number of irrational terms in the expansion of (85+62)100 is
4652.

Diameter of the circle given by |(z−α)/(z−β)|=k,k≠1 , where α,β are fixed points and z is varying point in argand plane is

Answer»

Diameter of the circle given by |(zα)/(zβ)|=k,k1 , where α,β are fixed points and z is varying point in argand plane is

4653.

By giving a counter example, show that the following statements are not true. (i) p : If all the angles of a triangle are equal, then the triangle is an obtuse angled triangle. (ii) q : The equation x 2 – 1 = 0 does not have a root lying between 0 and 2.

Answer» By giving a counter example, show that the following statements are not true. (i) p : If all the angles of a triangle are equal, then the triangle is an obtuse angled triangle. (ii) q : The equation x 2 – 1 = 0 does not have a root lying between 0 and 2.
4654.

If∑_{k=4}^{143} 1/\sqrt k + \sqrt{k+1} =a-\sqrt b then a and b equal to what.

Answer» If∑_{k=4}^{143} 1/\sqrt k + \sqrt{k+1} =a-\sqrt b then a and b equal to what.
4655.

nC0n+nC1n+1+nC2n+2+……+nCn2n=

Answer» nC0n+nC1n+1+nC2n+2++nCn2n=
4656.

Let A = {1, 2, 3} and R={(a,b):|a2−b2|≤5,a,bϵA}. Then write R as set of ordered pairs.

Answer»

Let A = {1, 2, 3} and R={(a,b):|a2b2|5,a,bϵA}. Then write R as set of ordered pairs.

4657.

What will be the next number in the following sequence? 10, 100, 1000, 10000, _______

Answer»

What will be the next number in the following sequence?


10, 100, 1000, 10000, _______



4658.

If the length of latusrectum of an Ellipse is equal to semi minor axis then Its eccentricity is

Answer»

If the length of latusrectum of an Ellipse is equal to semi minor axis then Its eccentricity is


4659.

33. What is period of |sin x + cos x|

Answer» 33. What is period of |sin x + cos x|
4660.

The image of the point (3,−1,11) w.r.t the line x2=y−23=z−34 is:

Answer»

The image of the point (3,1,11) w.r.t the line x2=y23=z34 is:

4661.

If (√3+i)100=299(p+iq), then p and q are roots of the equation

Answer»

If (3+i)100=299(p+iq), then p and q are roots of the equation

4662.

The first and last term of an ap are 1 and 11 if the sum of its terms is 36 then a = ______,d=_____,n=_____&an=_________

Answer»

The first and last term of an ap are 1 and 11 if the sum of its terms is 36 then a = ______,d=_____,n=_____&an=_________

4663.

If y=sin(logsinx), then dydx=

Answer»

If y=sin(logsinx), then dydx=

4664.

If for real values of x, cosθ=x+1x, then(a) θ is an acute angle(b) θ is a right angle(c) θ is an obtuse angle(d) No value of θ is possible

Answer» If for real values of x, cosθ=x+1x, then

(a) θ is an acute angle

(b) θ is a right angle

(c) θ is an obtuse angle

(d) No value of θ is possible
4665.

1+ 1

Answer» 1+ 1
4666.

For every positive integral value of n, 3n > n3 when

Answer»

For every positive integral value of n, 3n > n3 when



4667.

If n (A) = 15, n (A∪B ) = 29, n (A ∩ B) = 7 then n (B) = ?

Answer» If n (A) = 15, n (AB ) = 29, n (A B) = 7 then n (B) = ?
4668.

What is the sum of the first n positive integers? [1 MARK]

Answer» What is the sum of the first n positive integers? [1 MARK]
4669.

If ∫sec2x−2010sin2010x dx=P(x)(sin x)2010+C

Answer»

If sec2x2010sin2010x dx=P(x)(sin x)2010+C



4670.

Why constants like gravitational constant are not dimensionless but constants like 2,3 are dimensionless

Answer»

Why constants like gravitational constant are not dimensionless but constants like 2,3 are dimensionless

4671.

The equations of the latus rectum and the tangent at the vertex of a parabola are x + y = 8 and x + y = 12 respectively. The length of the latus retum is __________.

Answer» The equations of the latus rectum and the tangent at the vertex of a parabola are x + y = 8 and x + y = 12 respectively. The length of the latus retum is __________.
4672.

If 4+under root 3 is a root of ax²+cx+b=0 and 5+under root 6 is root of x²-dx+e=0,then the value of b+c/ade is?

Answer» If 4+under root 3 is a root of ax²+cx+b=0 and 5+under root 6 is root of x²-dx+e=0,then the value of b+c/ade is?
4673.

The value of I=∫30([x]+[x+13]+[x+23])dx, where [⋅] denotes the greatest integer function, is equal to

Answer»

The value of I=30([x]+[x+13]+[x+23])dx, where [] denotes the greatest integer function, is equal to



4674.

The number of different ways in which a committee of 4 members formed out of 6 Asians, 3 Europeans and 4 Americans if the committee is to have at least one member from each of the regional groups, is

Answer»

The number of different ways in which a committee of 4 members formed out of 6 Asians, 3 Europeans and 4 Americans if the committee is to have at least one member from each of the regional groups, is

4675.

If z1 and z2 are two complex numbers such that z1 + z2 is a real number, then z2 = ____________.

Answer» If z1 and z2 are two complex numbers such that z1 + z2 is a real number, then z2 = ____________.
4676.

Aju was standing at the corner of a square field. He started walking towards North-East direction. When he was 10√2 m away from where he started, he took a left turn and started walking again. Considering the square field as the coordinate plane and starting point as the origin, find the equation of Aju’s current path.

Answer» Aju was standing at the corner of a square field. He started walking towards North-East direction. When he was 102 m away from where he started, he took a left turn and started walking again. Considering the square field as the coordinate plane and starting point as the origin, find the equation of Aju’s current path.
4677.

24 Consider the set A={3,4,5} and the numbers of null relations, identity relations, universal relations, reflexive relations on A are respectively a, b, c, d then the value of a+b+c+d is?

Answer» 24 Consider the set A={3,4,5} and the numbers of null relations, identity relations, universal relations, reflexive relations on A are respectively a, b, c, d then the value of a+b+c+d is?
4678.

Intrigate (x cos inverse x dx )

Answer» Intrigate (x cos inverse x dx )
4679.

Let F(x)=f(x)+f(1x), where f(x)=x∫1log t1+tdt.Then the value of F(e) is:

Answer»

Let F(x)=f(x)+f(1x), where f(x)=x1log t1+tdt.

Then the value of F(e) is:

4680.

limh→02⎧⎪⎨⎪⎩√3sin(π6+h)−cos(π6+h)√3h(√3cosh−sinh)⎫⎪⎬⎪⎭ is equal to

Answer»

limh023sin(π6+h)cos(π6+h)3h(3coshsinh) is equal to


4681.

150 workers were engaged to finish a piece of work in a certain number of days. Four workers stopped working on the second day, four more workers stopped their work on the third day and so on. It took 8 more days to finish the work. Then the number of days in which the work was completed is

Answer»

150 workers were engaged to finish a piece of work in a certain number of days. Four workers stopped working on the second day, four more workers stopped their work on the third day and so on. It took 8 more days to finish the work. Then the number of days in which the work was completed is


4682.

Let f1:(0,∞)→R and f2:(0,∞)→R be defined by f1(x)=∫x021∏j=1(t−j)jdt, x>0 and f2(x)=98(x−1)50−600(x−1)49+2450, x>0, where, for any positive integer n and real number a1,a2…an, n∏i=1ai denotes the product of a1,a2,...an. Let mi and ni respectively denote the number of points of local minima and the number of points of local maxima of function fi, i=1,2 in the interval (0,∞).The value of 2m1+3n1+m1n1 is

Answer» Let f1:(0,)R and f2:(0,)R be defined by f1(x)=x021j=1(tj)jdt, x>0 and f2(x)=98(x1)50600(x1)49+2450, x>0, where, for any positive integer n and real number a1,a2an, ni=1ai denotes the product of a1,a2,...an. Let mi and ni respectively denote the number of points of local minima and the number of points of local maxima of function fi, i=1,2 in the interval (0,).



The value of 2m1+3n1+m1n1 is
4683.

Give the geometric representations of y = 3 as an equation:(i) in one variable(ii) in two variables

Answer» Give the geometric representations of y = 3 as an equation:

(i) in one variable

(ii) in two variables
4684.

A circular field has a circumference of 360 km. Three cyclists start together and can cycle 48, 60 and 72 km a day round the field. In how many days will they meet again?

Answer» A circular field has a circumference of 360 km. Three cyclists start together and can cycle 48, 60 and 72 km a day round the field. In how many days will they meet again?
4685.

A and B are two mutually exclusive and exhaustive events. If P(A)=17 find the value of 49 × P(B). ___

Answer»

A and B are two mutually exclusive and exhaustive events. If P(A)=17 find the value of 49 × P(B).

___
4686.

Suppose the line x−2α=y−2−5=z+22 lies on the plane x+3y−2z+β=0. Then (α+β) is equal to

Answer» Suppose the line x2α=y25=z+22 lies on the plane x+3y2z+β=0. Then (α+β) is equal to
4687.

If A is a symmetric matrix and B is a skew symmetric matrix of the same order then A2+B2 is a

Answer»

If A is a symmetric matrix and B is a skew symmetric matrix of the same order then A2+B2 is a


4688.

Write the number of vectors of unit length perpendicular to both the vectors a→=2i^+j^+2k^ and b→=j^+k^.

Answer» Write the number of vectors of unit length perpendicular to both the vectors a=2i^+j^+2k^ and b=j^+k^.
4689.

The value of limx→01+sinx−cosx+loge(1−x)x3 is

Answer»

The value of limx01+sinxcosx+loge(1x)x3 is

4690.

17. If f is a function such that f(0) =2,f(1) =3,f(x+2) =2f(x)-f(x+1) then f(5)is

Answer» 17. If f is a function such that f(0) =2,f(1) =3,f(x+2) =2f(x)-f(x+1) then f(5)is
4691.

Question 2The product of two consecutive positive integers is divisible by 2: Is this statement true or false? Give reasons.

Answer»

Question 2

The product of two consecutive positive integers is divisible by 2: Is this statement true or false? Give reasons.



4692.

Coplanar vector

Answer» Coplanar vector
4693.

The shape of XeF2, XeF4 and XeO2F2 are respectively.

Answer»

The shape of XeF2, XeF4 and XeO2F2 are respectively.

4694.

The range of f(x)=12x2−6x+7 is

Answer»

The range of f(x)=12x26x+7 is

4695.

The solution y(x) of the differential equation d2ydx2=sin 3x+ex+x2 when y1(0)=1 and y(0) = 0 is

Answer»

The solution y(x) of the differential equation d2ydx2=sin 3x+ex+x2 when y1(0)=1 and y(0) = 0 is

4696.

Match the functions with their corresponding derivatives.

Answer»

Match the functions with their corresponding derivatives.

4697.

The sum to 50 terms of the series 312+512+22+712+22+32+… is

Answer»

The sum to 50 terms of the series 312+512+22+712+22+32+ is

4698.

Which of the following statements are correct ? Write a correct form of each of the incorrect statements. (i) a ⊂ {a, b, c} (ii) {a} ϵ {a, b, c} (iii) a ϵ {(a), b} (iv) {a} ⊂ {(a), b} (v) {b, c} ⊂ {a, {b, c}} (vi) {a, b} ⊂ {a, {b, c}} (vii) ϕ ϵ {a, b} (viii) ϕ ⊂ {a, b, c} (ix) {x : x +3 = 3} = ϕ

Answer»

Which of the following statements are correct ? Write a correct form of each of the incorrect statements.

(i) a {a, b, c}

(ii) {a} ϵ {a, b, c}

(iii) a ϵ {(a), b}

(iv) {a} {(a), b}

(v) {b, c} {a, {b, c}}

(vi) {a, b} {a, {b, c}}

(vii) ϕ ϵ {a, b}

(viii) ϕ {a, b, c}

(ix) {x : x +3 = 3} = ϕ

4699.

The zeroes of the polynomial f(x)=x2−3 are x=

Answer»

The zeroes of the polynomial f(x)=x23 are x=

4700.

Let →a,→b,→c are the non zero vectors no two of which are collinear. If the vector →a+2→b is collinear with →c and →b+3→c is collinear with →a then the magnitude of →a+2→b+6→c is equal to___

Answer» Let a,b,c are the non zero vectors no two of which are collinear. If the vector a+2b is collinear with c and b+3c is collinear with a then the magnitude of a+2b+6c is equal to___