Question

trigonometry please solve it ​

Answer 1

Answer:

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Answer 2

Answer:

(sin³∅ + cos³∅)/(sin∅+cos∅) + sin∅cos∅ = 1

LHS

= (sin∅+cos∅)(sin²∅ + cos²∅ - sin∅.cos∅)/(sin∅+cos∅) + sin∅.cos∅

= sin²∅ + cos²∅ - sin∅.cos∅) + sin∅.cos∅

= sin²∅ + cos²∅

= 1

LHS = RHS

hence proved

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