(07.01 HC)
Use the image below to answer the following question. Find the value of sin xº and
Cos yº. What relationship do the ratios of sin x® and cos yº share?

Given:

Right triangle

To find:

The value of sin x° and cos y° and the relationship between ratios of sin x° and cos y°.

Solution:

Using Pythagoras theorem:

Taking square on both sides, we get

PO = 5

Using basic trigonometric ratio formula:

Ratios of sin x° and cos y°:

The ratios of sin x° and cos y° are both identical.

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