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Prove this identify : 2 cos^2 (45°-A ) = 1 +sin 2 A​

Prove this identify : 2 cos^2 (45°-A ) = 1 +sin 2 A​
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Prove this identify : 2 cos^2 (45°-A ) = 1 +sin 2 A​

User James Buck
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I wasn’t sure how to put this into words. I hope this makes sense. <3
Prove this identify : 2 cos^2 (45°-A ) = 1 +sin 2 A​-example-1
User Dalisa
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