In any triangle `A B C ,\ sin A-cos B=cos C ,\ ` the angle`\ B` is a.`pi/2` b. `pi/3` c.`pi/4` d. `pi/6`

In any triangle ABC,sin A-cos B=cos C, the angle B is a.(pi)/(2) b.(pi)/(3) c.(pi)/(4) d.(pi)/(6)

If A+B+C=pi , then cos B+cos C=

If in a Delta ABC,/_B=(2 pi)/(3) then cos A+cos C lie in

If in Delta ABC,/_B=2(pi)/(3), then cos A+cos C lie in

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 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 a triangle A B C ,a : b : c=4:5: 6. Then 3A+B equals to: 4C b. 2pi c. pi-C d. pi

In a A B C , if (c+a+b)(a+b-c)=a b , then the measure of angel C is pi/3 (b) pi/6 (c) (2pi)/3 (d) pi/2

In a triangle ABC,a:b:c=4:5:6. Then 3A+B equals to: 4C b.2 pi c. pi-Cd. pi

If the angles of a triangle are in A.P.then the measures of one of the angles in radians is (pi)/(6) b.(pi)/(3) c.(pi)/(2) d.(2 pi)/(3)