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Sin^4A= 1/8 (3-4cos2A+cos4A)
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Sin^4A= 1/8 (3-4cos2A+cos4A)
Trigonometry: Multiple Angle FOLLOW US:
Trigonometry: Multiple Angle FOLLOW US:
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Sin^4A= 1/8 (3-4cos2A+cos4A)
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