sukriti009 sukriti009

06-09-2021
Mathematics

contestada

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 class=

Respuesta :

discipulus discipulus

06-09-2021

Answer:

I don't understand what is your question?

Answer Link

jimrgrant1 jimrgrant1

06-09-2021

Answer:

see explanation

Step-by-step explanation:

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

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

= 2sin²A + 2cos²A

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