(sinx + cos x)⁴ plz fast solve it
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Step-by-step explanation:
(sinx + cos x)^4=(sinx + cos x)^2(sinx + cos x)^2
=(1+2sinxcosx)(1+2sinxcosx)
=(1+2sinxcosx)^2=1+4sinxcosx^2+4sinxcosx
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