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3 votes
One of the solutions to 14 - 6 cos x = 21 - 19 cos x for -pi ≤ x ≤ pi is

A. 1.29
B. 0.57
C. 1.00
D. 1.28

User Alfred Woo
by
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1 Answer

2 votes

Answer:

1

Explanation:

i think

User Invariance
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