Using trigonometric identities, it is found that the sine and the tangent of the angle are given as follows:
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<h3>How do we find the sine of an angle given the cosine?</h3>
We use the following identity:

In this problem, the cosine is:

Hence the sine is found as follows:




Second quadrant, so the sine is positive, hence:

<h3>What is the tangent of an angle?</h3>
The tangent is given by the <u>sine divided by the cosine</u>, hence:

Hence:



More can be learned about trigonometric identities at brainly.com/question/7331447
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