If in a triangle ABC, `theta` is the angle determined by `cos theta=(a-b)//c`, then

In a triangle ABC,sin A-cos B=cos C then angle B is

If theta is any real number, then, in a triangle ABC, prove that a cos (B - theta) + b cos (A + theta) = c cos theta .

In a triangle ABC, prove that for any angle theta, b cos (A - theta) + a cos (B + theta) = C cos theta .

In a triangle ABC, prove that for any angle theta,b cos(A-theta)+a cos(B+theta)=C cos theta

In a triangle ABC, sin A- cos B = Cos C , then angle B is

In a triangle ABC, sin A- cos B = Cos C , then angle B is

If length of the sides of a triangle ABC are 4 cm, 5 cm and 6 cm, O is point inside the triangle ABC such that angle OBC = angle OCA = angle OAB = theta , then value of cot theta is .