Math, asked by ashokksingh085, 11 months ago

(sina+cosa)^2+(sina-cosa)^2

Answers

Answered by sachinjaiswal4584

0

Answer:

2

Step-by-step explanation:

use two identities....

a plus B whole square
sin square a plus cos square a equal to 1

Answered by gb9393466

0

Answer:

(sinA+cosA) ^2+(sinA- cosA) ^2

(SinA^2+cosA^2+2sinA.cosA)+(sinA^2+cosA^2 - 2sinAcosA)

1+1

=2

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