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Home Q & A Board Science-Related Homework Help Mathematics
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fosmanali01 fosmanali01
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9 years ago
.Given sinθ=0.6293 where 900≤θ≤1800, determine the smallest positive angle that is co-terminal to θ and is not equal to θ.
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wrote...
#1
9 years ago
so here as sin\({\theta}\) is = 0.6293

\({\theta}\) = arc sin (0.6293) = 38.9984

but as we need it to be in second quadrant it is 90+38.9984 = 128.9984 degrees
wrote...
#2
Educator
9 years ago
Quote from: sravancv (9 years ago)
but as we need it to be in second quadrant it is 90+38.9984 = 128.9984 degrees

Why does it need to be in the second quadrant?
wrote...
#3
9 years ago
Its becoz theta is said to be in between 90 and 180 degrees which indirectly says that it should be in Q2
wrote...
#4
Educator
9 years ago
Quote from: fosmanali01 (9 years ago)
where 900≤θ≤1800

Okay, but then how do you rationalize this, what does this mean?
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