For Negative Pi Less Than or Equal to Theta which is less than or equal to Pi
find all solutions
2(sin^2 x - cos^2 x ) = 8sinx-5
x is theta, and it is not in the exponent.
I have issues solving trigonometric equations of this style because I seem to be unsure how to handle the exponents.
I seek assistance here as usual because the lack of my educator's teaching skills.
you need to first use the identity:
then the equation you get after this, use the identity:
after that you will receive a square equation with
and you need to solve that equation by calling
and .
from the answers you'll get, you need to figure which one is suitable for
the condition of the question.