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Can't calculate angle a, when ๐‘ ๐‘–๐‘›(๐‘Ž)=2.

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How can i find angle a in radians, if ๐‘ ๐‘–๐‘›(๐‘Ž)=2, can ๐‘ ๐‘–๐‘› be more than 1?

Accepted Answer

Daniel Pollard
Daniel Pollard on 15 Apr 2021
If a is a real number, then sin(a) must be between -1 and 1. Calling
1.5708 - 1.3170i
which is a complex number, so can't really represent an actual angle. Have a look at plots of sin and cos; they never go below -1 and never go above 1.

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