If #sectheta+tantheta=3/2#, what is the value of #sintheta#?
No idea-well do something!!
And then the next stage becomes clear
So what now.? Well we only want to know about
And we do know
So square both sides
Only the first will do because if
Again we know
Dividing (2) by (1) we get
Adding (1) and (3) we get
Subtracting (3) from (1) we get