[" The set of all values a for which the function "f(x)=(a^(2)-3a+2)(cos^(2)(x)/(4)-sin^(2)(x)/(4))+(a-1)x+sin1],[" does not possess critical points is "]

The set of all values of a for which the function f(x)=(a^(2)-3a+2)(cos^(2)backslash(x)/(4)-sin^(2)backslash(x)/(4))+(a-1)x+sin1 does not possess critical points is (A) [1,oo)(B)(0,1)uu(1,4)(C)(-2,4)(D)(1,3)uu(3,5)

The set of all values of a for which the function f(x)=(a^2-3a+2)(cos^2\ x/4-sin^2\ x/4)+(a-1)x+sin1 does not possess critical points is (A) [1,oo) (B) (0,1) uu (1,4) (C) (-2,4) (D) (1,3) uu (3,5)

The set of a for which the function f(x)=(a^2-3a+2){cos^2""x/4-sin^2""x/4}+(a-1)x+sin1 does not process critical points , is

The integral value of 'b' for which the function f(x)=(b^(2)-3b+2)(cos^(2)x sin^(2)x)+(b-1)x+sin(b^(2)+b+1) does not possesses any stationary point is

The range of values of k for which the function f(x)=(2k-3)(x+tan2)+(k-1)(sin^(4)x+cos^(4)x) does not possess critical points is

The value of a for which the function f(x)=(4a-3)(x+log5)+2(a-7)(cot x)/(2)(sin^(2)x)/(2) does not possess critical points is (-oo,-(4)/(3)) (b) (-oo,-1)(c[1,oo)(d)(2,oo)