1.

If theta_(1) , theta _(2) , theta_(3) …..theta _(n)are in A.P. then (sin theta _(1) + sin theta_(2) +…+ sin theta _(n))/(cos theta _(1) + cos theta _(2) +…+ cos theta _(n))

Answer»

0
`TAN (theta _(1) + theta _(n))`
`tan (( theta _(1) + theta _(n))/( 2))`
`tan (theta _(1) - theta _(n))/( 2))`

ANSWER :C


Discussion

No Comment Found