Question

Easiest way to memorize unit circle?

Answer 1

Yes the following way for first quadrant.

Explanation:

I can try out for first quadrant and rest can follow.

Write the numbers from `0` to `4` and then divide each number by `4` and take square root of each and you get sine ratio of `0^@, 30^@, 45^@. 60^@` and `90^@`.

For cosine ratio just reverse the order.

For tangent ratio just take ratio of sine and cosine values

You can reverse, tangent ratio for getting cotangent ratio.

Secant ratio is reciprocal of cosine ratio and reverse it for getting cosecant ratio.

It all appears as follows: