Answer: Choice A. sin(A) = cos(B)
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Explanation:
The rule is that sin(A) = cos(B) if and only if A+B = 90.
Note how
- sin(A) = opposite/hypotenuse = BC/AB
- cos(B) = adjacent/hypotenuse = BC/AB
Since both result in the same fraction BC/AB, this helps us see why sin(A) = cos(B). Similarly, we can find that cos(A) = sin(B).
In the diagram below, the angles A and B are complementary, meaning they add to 90 degrees. So this trick only applies to right triangles.
The side lengths can be anything you want, as long as you're dealing with a right triangle.
Part c : consecutive interior angle
part e: alternate interior angle
part f : vertical angle
Answer with Step-by-step explanation:
We are given that

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Average value of the function is given gy

![f_{avg}=\frac{1}{\pi}[cosx]^{\pi}_{0}](https://tex.z-dn.net/?f=f_%7Bavg%7D%3D%5Cfrac%7B1%7D%7B%5Cpi%7D%5Bcosx%5D%5E%7B%5Cpi%7D_%7B0%7D)
Using the formula







Answer:
Option D
Step-by-step explanation: