Math, asked by mprasanta, 1 year ago

Prove that (SinA+CosA)(1-SinA into CosA) = Sin³A+Cos³A

Answers

Answered by kanojiaasmita1
2

Answer:

I HOPE IT WILL HELP YOU

Step-by-step explanation:

L.H.S. = (sinA + cosA)(1 - sinA X cosA)  

= sinA - sin²A X cosA + cosA - sinA X cos²A  

= sinA - sinA X cos²A + cosA - sin²A X cosA  

= sinA(1 - cos²A) + cosA(1 - sin²A)  

= sinA X sin²A + cosA X cos²A  

= sin³A + cos³A  

= R.H.S. Proved Ans.

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kanojiaasmita1: so plz mark as brainliest
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