SOLUTION: Factor and simplify. {{{ sin^4(x)-cos^4(x) }}} Thank you friends

SOLUTION: Factor and simplify. {{{ sin^4(x)-cos^4(x) }}} Thank you friends

Algebra.Com

Question 1101571: Factor and simplify.

Thank you friends
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!

=
=
= -cos(2x)
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