Can't calculate angle a, when 𝑠𝑖𝑛(𝑎)=2.

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gio kapanadze
gio kapanadze 2021-4-15
回答： Daniel Pollard 2021-4-15
How can i find angle a in radians, if 𝑠𝑖𝑛(𝑎)=2, can 𝑠𝑖𝑛 be more than 1?

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Daniel Pollard
Daniel Pollard 2021-4-15
If a is a real number, then sin(a) must be between -1 and 1. Calling
asin(2)
returns
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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