Question

Write the value of `4 tan^2 theta  - 4/ cos^2 theta`

Answer 1

4 `tan^2 theta -  4 / cos^2 theta`

     =` 4 tan^2 theta - 4 sec^2 theta`

     =`4 (tan^2 theta - sec^2 theta )`

     =4(-1)

      = -4