Precalculus Test

User Generated

alpenml

Mathematics

Description

20 questions. Involves precalculus and trigonometry, Please show work and circle the final answer if posslble to make it easier for me. Thank you so much.

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Explanation & Answer

I finished (except for the question 10). I have no doubt I can solve it but please explain what the angles are (or upload the original picture).We still have enough time, so please ask what is unclear for you.

1. sin(𝑎 − 𝑏) = sin 𝑎 cos 𝑏 − sin 𝑏 cos 𝑎 , so
𝜋
7𝜋
7𝜋
𝜋
𝜋 7𝜋
𝜋
sin cos
− sin
cos
= sin ( − ) = sin (− ) = −1.
12
12
12
12
12 12
2
2. sin 𝜃 is given,

𝜋
2

< �...


Anonymous
Really great stuff, couldn't ask for more.

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