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

How can i find angle a in radians, if 𝑠𝑖𝑛(𝑎)=2, can 𝑠𝑖𝑛 be more than 1?

Answer 1

[Daniel Pollard]

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.