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romanna [79]
3 years ago
9

Solve 2(sin2 90° − 2 sin 90° cos 90° + cos2 90°)

Mathematics
1 answer:
Vikki [24]3 years ago
4 0
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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