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 
is
(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
Email Id : [email protected]
Ph No. : 9940116934
