If `sin^(4)x + cos^(4)x=k` then possible value of `k` is/are :
(A) `1/2`
(B) `1/4`
(C) `1`
(D)`7/10`

If cos4x=1+k sin^(2)x cos^(2)x, then write the value of k

If cos(2cos^(-1)x)=(1)/(8) then value of X= (A) 4/3 (B) (3)/(4) (C) (31)/(32) (D) 1

Let (d)/(dx)F(x)=((e^( sin x))/(x)),x>0. If int_(1)^(4)(3)/(x)e^(sin(x^(3)))dx=F(k)-F(1), then one of the possible values of k, is: (a)15 (b) 16(cc)63 (d) 64

If sin^(3)x cos3x+cos^(3)x sin3x=(3)/(8), then the value of sin4x is (1)/(2)(b)1(c)-(1)/(2)(d)0

If cos20^(@)=k and cos x=2k^(2)-1, then the possible values of x between 0^(0) and 360^(@) are

If x^2 + 5x - 2 k , is exactly divisible by (x-1), then the value of K is (A) 1 (B) 2 (C ) 3 (D) 4

If |[1,2,K],[K,4,5],[5,6,7]|=0 ,then the possible values of K are

If sin A+sin^(2)A=1, then the value of cos^(2)A+cos^(4)A is 2(b)1(c)-2(d)0

If cos 4x = 1 + k sin^2xcos^2x then k =?

If the two parabolas y^2 = 4x and y^2 = (x-k) have a common normal other than x-axis, then value of k can be (A) 1 (B) 2 (C) 3 (D) 4