Sin coube a+coscoube a/sin a+cosa=1-sina×cosa
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Step-by-step explanation:
sin³A+cos³A/sinA+cosA
=(sinA+cosA)(sin²A-sinAcosA+cos²A)/(sinA+cosA)
=(sinA+cosA)(1-sinAcosA)/(sinA+cosA)
=1-sinAcosA
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