If 2cos theta -sin theta =x and costheta- 3 sin theta =y then prove that 2x 2 + y 2 -2xy=5. thank you.
Answers
Answered by
11
sin^2a + cos^2a = 1 .
put values of this and we get answer
put values of this and we get answer
Attachments:
Answered by
5
Answer:
Step-by-step explanation
I will hope that it will help you
:
Attachments:
Similar questions