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If you look at the definition of the sine function in a triangle, you'll discover

that the maximum possible value of the sine function is ' 1 ' and the minimum

possible value is ' -1 '.

There's no angle that can have a sine greater than ' 1 ' or less than ' -1 '.

So the absolute value of the sine of anything is always ' 1 ' or less.

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Q: Why sinθ value is less then and equal to one?
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