In a ` triangleA B C ,/_B=90^0 and b+a=4.` The area of the triangle is maximum when `/_C` is (a)`pi/4` (b) `pi/6` (c)`pi/3` (d) none of these

In the right triangle BAC, angle A=pi/2 and a+b=8 . The area of the triangle is maximum when angle C , is

f(x)=sin+sqrt(3)cosx is maximum when x= pi/3 (b) pi/4 (c) pi/6 (d) 0

If an a triangle A B C , b=3 c, a n d C-B=90^0, then find the value of tanB

If tan^(-1)(cottheta)=2\ theta , then theta= (a) +-pi/3 (b) +-pi/4 (c) +-pi/6 (d) none of these

The area of the region given by x^2+y^2-6y<=0&y<=x is (9pi-9)/4 b. (9pi-18)/4 c. (3pi+9)/4 d. none of these

In the formula angleA+angleB+angleC=180^(@) , if angleA=90^(@) and angle B=55^(@) , then angleC= ____________ (a) pi/4 (b) pi/6 (c) pi/3 (d) none of these

int_0^pi cos2xlogsinxdx= (A) pi (B) -pi/2 (C) pi/2 (D) none of these

IF the lengths of the side of triangle are 3,5 and 7, then the largest angle of the triangle is pi/2 (b) (5pi)/6 (c) (2pi)/3 (d) (3pi)/4

sin^-1 (sin ((7pi)/6))= (A) (7pi)/6 (B) pi/6 (C) -pi/6 (D) none of these

The range of f(x)=sin^(-1)((x^2+1)/(x^2+2)) is (a) [0,pi/2] (b) (0,pi/6) (c) [pi/6,pi/2] (d) none of these