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Prove that trigonometry sin^2 A= (1-cos2A)/2 & cos^2 A= (1+cos2A)/2 PART-8
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In this video explaining trigonometry standard method. In this method very simple and example basic method. This is very interesting.
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Please watch: "Simple and easily explain basic properties Scalar product important rules"
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Please watch: "Simple and easily explain basic properties Scalar product important rules"
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Prove that trigonometry sin^2 A= (1-cos2A)/2 & cos^2 A= (1+cos2A)/2 PART-8
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