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3 votes
Cos(7π/6)= a. 1/2 b.-1/2 c.√3/2 d.-√3/2 Help please?

User Nad Pat
by
6.9k points

2 Answers

4 votes

Answer:

D. -√3/2

Explanation:

User Rhemmuuu
by
6.6k points
5 votes

Answer:

D. -√3/2

Explanation:

Remember your unit circle.

Alternatively, you can plug in cos(7π/6) into your calc (Put it in rad mode) and calculate your answer.

User Lbsn
by
7.6k points
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