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°?
(Observe the above table)
IfA>B, then sin Asin B. Is it true?
IfA>B, then cos Acos B. Is it true?
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Answer 1

Answer:

Where is table means figure

Answer 2

Answer:

sin is an increasing function i.e. as the value of angle(Ф) increases, the value of function sin(Ф) increases . So if A>B, then Sin A > sin B. So the statement is true. - cos is a decreasing function i.e. as the value of angle(Ф) increases, the value of the function cos(Ф) decreases.