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Mathematics, 23.10.2020 21:40 DerikF9478

If cos(x)= 3/4 and tan(x), what is cos(2x)?
-3sqroot7/8
-1/8
1/8
3sqroot7/8

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If cos(x)= 3/4 and tan(x), what is cos(2x)?
-3sqroot7/8
-1/8
1/8
3sqroot7/8...

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