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-BARSIC- [3]
3 years ago
13

Can someone explain to my why sin(90)=1

Mathematics
1 answer:
ivann1987 [24]3 years ago
3 0
On the unit circle: the end of the terminal side of a 90 degree angle is (1,0) where 1 is the value of sin(90°) and 0 is the value of cos(90°)

On the graph of sine: 90° = \frac{ \pi }{2} radians. if f(x) = sin(x) in radians, f(\frac{ \pi }{2}) = 1/2
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