The minimum value of, `25cos e c^2x+16 sin^2x` (A) 41 (B) 42 (C) 43 (D) none of these

The minimum value of 27^(cos 2x)+81^(sin 2x) is

A minimum value of sin x cos2x is -

Minimum value of 27^(cos 2x) 81^( sin 2x) is

If f(x)= e^(coscos^-1x^2+tancot^-1 x^2), then minimum value of f(x) is (A) e (B) e^2 (C) e^(2/3 (D) none of these

The minimum value of f(x)=x^(4)-x^(2)-2x+6 is (a) 6 (b) 4 (c) 8 (d) none of these

The minimum value of 2^((x^(2)-3)^(3)+27) is 2^(27) (b) 2 (c) 1 (d) none of these

The minimum value of e^((2x^(2)-2x+1)sin^(2)x) is e(b)(1)/(e)(c)1(d)0

If a, b,c be the sides foi a triangle ABC and if roots of equation a(b-c)x^2+b(c-a)x+c(a-b)=0 are equal then sin^2 A/2, sin^2, B/2, sin^2 C/2 are in (A) A.P. (B) G.P. (C) H.P. (D) none of these

The number of solution of the equaiton 1+sin x cos x=2sin x cos x in x in [0,4 pi] are (A) 4 (B) 5 (C) 7 (D) None of these

The minimum value of (x^(2)+(250)/(x)) is (a) 75 (b) 50(c)25 (d) 55