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Mathematics
8 February, 01:24
Solve 2 (sin2 90° - 2 sin 90° cos 90° + cos2 90°)
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Kiara Clarke
8 February, 01:36
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Sin 90 = 1 and cos 90 = o
So we have
2 (1^2 - 2*1*0 + 0^2) = 2 (1 - 0 - 0) = 2
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