Question

tell this...................,..

Answer 1

sin^8 - cos^8

(sin^4)^2 - ( cos^4)^8

( sin^4 + cos^4) ( sin^4 - cos^4)

(sin^2)^2 + ( cos^2)^2 ( ( sin^2)^2 -( cos^2)^2)

( sin^2+ cos^2)^2 - 2 sin^2cos^2( ( sin^2 + cos^2)( sin^2 - cos^2))

1 - 2 sin^2, cos^2 ( sin^2 - cos^2)