Question

Question #c7b75

Answer 1

`2sin^2theta+3cos^2theta`

`=2sin^2theta+2cos^2theta+cos^2theta`

`=2(sin^2theta+cos^2theta)+cos^2theta`

`=2*1+cos^2theta`

The value of given expression will be minimum when `cos^2theta` minimum which is `=0`. So the minimum value is `=2`