Question

What can you say about the values of sin A and cos A, as the value of angle A increases from 0° to 90°?
If A > B, then sin A > sin B. Is it true?
If A > B, then cos A > cos B. Is it true?

Answer 1

sin(x) is an increasing function
so it increases with increase in value from 0 to 90
and cos (x) is a decreasing function in 0 to 90
so it decreases with increase in angle
here are the graphs for better understanding

so 1 is true and 2 is false


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