Math, asked by reddyprasanna718, 7 months ago

What is the value of Sin²A-cos²A=?

Answers

Answered by Gentleman123321

1

Step-by-step explanation:

sin²A-cos²A=sin²A-(1-sin²A) = 2sin²A-1

also (1-cos²A)-cos²A=1-2cos²A

Also cos(2x)

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