asked 70.4k views
5 votes
If cos(x) = three-fourths and tan(x) < 0, what is cos(2x)? negative startfraction 3 startroot 7 endroot over 8 endfraction negative startfraction 1 over 8 endfraction startfraction 1 over 8 endfraction startfraction 3 startroot 7 endroot over 8 endfraction.

2 Answers

2 votes

Answer: I confirm the answer is C

Explanation:

If cos(x) = three-fourths and tan(x) < 0, what is cos(2x)? negative startfraction-example-1
answered
User Meyer Denney
by
7.9k points
3 votes

Answer:

1/8

Explanation:

answered
User Musfiq Shanta
by
8.4k points
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