1.

The valuetan^(-1)[sqrt((a-b)/(a+b))"tan"(theta)/2] is equal to

Answer»

`COS^(-1)((a cos THETA +B)/(a+b cos theta))`
`cos^(-1)((a+b cos theta)/(a cos theta+b))`
`cos^(-1)((a cos theta)/(a+b cos theta))`
`cos^(-1)((b cos theta)/(a cos theta+b))`

ANSWER :A


Discussion

No Comment Found