Answer:
Step-by-step explanation:
= (sin³A-cos³A) /(sinA-cosA)
=(sinA-cosA) (sin²A +2sinAcosA +Cos²A) /(sinA-cosA)
=(sin²A+cos²A+2sinAcosA)
=1+2sinAcosA
=1+sin2A
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Answer:
Step-by-step explanation:
= (sin³A-cos³A) /(sinA-cosA)
=(sinA-cosA) (sin²A +2sinAcosA +Cos²A) /(sinA-cosA)
=(sin²A+cos²A+2sinAcosA)
=1+2sinAcosA
=1+sin2A