Question

sin³∅+cos³∅=(sin∅+cos∅)(1-sin∅cos∅)

Answer 1

Step-by-step explanation:

a^3+b^3=(a+b)(a^2+b^2-ab)

hope it helps you

$use this formula in lhs we get</p><p></p><p>(sina+cosa)(sin^2a+cos^2a-sinacosa)</p><p>$

Answer 2

Answer:

yes it is true...

Step-by-step explanation:

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