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Which is not a solution of sin 20 = 1? A = 90 B = 45 C = 225 D = - 135
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20 votes
Which is not a solution of sin 20 = 1?
A = 90
B = 45
C = 225
D = - 135

Which is not a solution of sin 20 = 1? A = 90 B = 45 C = 225 D = - 135-example-1
User Dan Lord
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4.7k points

1 Answer

10 votes
If you plug in 90 into theta, the expression becomes sin(180), which has a value of zero. Therefore 90 cannot be a solution to this equation. Hope this helps.
User Njorden
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