CBSE Guess > Papers > Important Questions > Class XII > 2010 > Maths > Mathematics By Mr Vasu Raj CBSE CLASS XII Q. 1. Find intervals in which the function given by (a) strictly increasing (b) strictly decreasing. Q. 2. Show that the function f given by f (x) = tan–1(sin x + cos x), x > 0 is always an strictly increasing function in Find the intervals in which the following functions are increasing or decreasing Q. 1. f(x) = -x2 - 2x +15. Q. 2. f(x) = 2x3 +9x2 +12x +20 Q. 3. (x+1)3(x-3)3. Q. 4. x4 - Q. 5. f(x) sin3x. Q. 6. f(x) = sinx + cosx. Q. 7. f(x) sin4x + cos4 x on [0, p/2] Q. 8. f(x) = log(1+x) - Answers
Paper By Mr Vasu Raj |