Math, asked by saketbade, 22 days ago

If A=45°, then prove that cos^2A=1-2sin^2A

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Answered by bapbaapbaaphotahaibe

0

Answer:

থদকথৈ দখথখত খথযঠত ঠলরঠথঠ রখণণখরখঙখ

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