Home
Class 12
MATHS
If x^3f(x)=sqrt(1+cos2x)+|f(x)|, (-3pi)/...

If `x^3f(x)=sqrt(1+cos2x)+|f(x)|, (-3pi)/4ltxlt(-pi) /2` and `f(x)=(alphacosx)/(1+x^3)` , then the value of `alpha` is (A)` 2` (B) ` sqrt2` (C) ` -sqrt2` (D) ` 1`

Promotional Banner

Similar Questions

Explore conceptually related problems

If f (x) = (alpha x)/( x+1) , x ne -1 , for what value of alpha is f[f(x)] = x? a) sqrt2 b) -sqrt2 c)1 d)-1

Let f(x)=(alphax)/((x+1)),x!=-1. The for what value of alpha is f(f(x))=x (a) sqrt(2) (b) -sqrt(2) (c) 1 (d) -1

Let f(x)=(alphax)/((x+1)),x!=-1. for what value of alpha is f(f(x))=x ? (a) sqrt(2) (b) -sqrt(2) (c) 1 (d) -1

Let f(x)=(alphax)/((x+1)),x!=-1. The for what value of alpha is f(f(x))=x ? (a) sqrt(2) " " (b) -sqrt(2) " " (c) 1 " " (d) -1

If 4\ cos^(-1)x+sin^(-1)x=pi , then the value of x is (a) 3/2 (b) 1/(sqrt(2)) (c) (sqrt(3))/2 (d) 2/(sqrt(3))

If f(x)=(sqrt(cos((pi)/(2)-x)))/(1-cos(x+(pi)/(2))^((1)/(3))) and g(x)=(1)/(sqrt([sin x])) then range of g(x)-f(x) contains

If f(x) = 6x^3 + 4x^2 + 3x +2 , find the values of f(-1), f (1/3) and f(sqrt2) .

If (pi)/(2)ltxlt(3pi)/(2) , then write the value of sqrt((1+cos 2x)/(2)) .

If f(x)=3sqrt(1−x^2)​+3sqrt(1−x^2)​, then f(x) is