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Mathematics, 14.12.2020 20:20 bombo99

Need ASAP!! Suppose cos(x) = 1/!sqr root 5
and sin(x) > 0. What is the value of tan(2x)?

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Need ASAP!! Suppose cos(x) = 1/!sqr root 5
and sin(x) > 0. What is the value of tan(2x)?...
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