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.

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David Thomas asked Jul 12, 2023

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5 votes

Mathematics
high-school

David Thomas asked Jul 12, 2023

by David Thomas

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15 votes

Answer: I confirm the answer is C

Explanation:

$If cos(x) = three-fourths and tan(x) < 0, what is cos(2x)? negative startfraction-example-1$

Webmasters answered Jul 15, 2023

by Webmasters

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9 votes

Answer:

1/8

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Sayan Pathak answered Jul 16, 2023

by Sayan Pathak

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