what is sin raise to power 4 + Cos raise to power 4
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Sin^4+cos^4
(Sin^2+cos^2)^2-----> then as sin^2+cos^2=1
(1)^2=1
(Sin^2+cos^2)^2-----> then as sin^2+cos^2=1
(1)^2=1
Navee11:
1-2 sin^2A:cos^A
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