Question

If y=cos^(-4)((4-x^(2))/(4+x^(2)))+sin^(-4)((4x)/(4+x^(2)))rArr(dy)/(dx)= A) (2)/(x^(2)+4) B) (4)/(x^(2)+4) C) (8)/(x^(3)+4) D) (16)/(x^(2)+4)​

Answer 1

Answer:

I don't know ok thank bro