If `cos theta= -1/2` and `pi lt theta lt (3pi)/2`, find the value of `4 tan^2 theta-3 cose
Channel: Doubtnut
Date: 05/04/2020

If `cos theta= -1/2` and `pi lt theta lt (3pi)/2`, find the value of `4 tan^2 theta-3 cosec^2 theta.`