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Zayden Vaughan
Mathematics
31 December, 14:41
Expressing cos^2x in terms of cos2x
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Roxanne
31 December, 14:45
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Rearrange
2sin^2x = 1-Cos2x
Divide by 2 to isolate for sin^2x
sin^2x = (1-Cos2x) / 2
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