Math, asked by Rufayda, 11 months ago

(1-cosA)(1+cosA) = sin²A

Answers

Answered by simmu57
0

Step-by-step explanation:

(1-cosA) (1+cosA)=

(1-cos²A) =sin²A

Answered by sabeenavahid77
0

Answer:

Step-by-step explanation:

RHS = sin2A

=1 - cos2A

=(1+cosA)(1-cosA)

=LHS

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