1+2tan^2theta/cos^2theta=tan^4theta+sec^4theta
Answers
Answered by
0
Step-by-step explanation:
1 + 2tan²x. tan^4x+ sec^4x
-------------- =
cos²x
1+tan²x= sec²x
1+2tan²x= sec²x + tan²x
sec²x + tan²x
--------------------- = sec^4x +tan²x. sec²x
cos²x
Similar questions