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No 5 how do we do with explanation there is answer but how the that comes
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No 5 how do we do with explanation there is answer but how the
that comes

No 5 how do we do with explanation there is answer but how the that comes-example-1
User Njtman
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2 Answers

4 votes

Answer:

see explanation

Explanation:

(sinA + cosA)² + (sinA - cosA)² ← expand using FOIL

= sin²A + 2sinAcosA + cos²A + sin²A - 2sinAcosA + cos²A ← collect like terms

= 2sin²A + 2cos²A

User Brian Ogden
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8.3k points
4 votes

Answer:

I don't understand what is your question?

User Ray Nicholus
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7.9k points
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