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Mathematics, 17.02.2022 21:20 konoisaa

Given tanTHETA = -2 and pi/2 < THETA < pi; find cos2THETA. A: -4/3
B: -4/5
C: 3/4
D: -3/5

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Given tanTHETA = -2 and pi/2 < THETA < pi; find cos2THETA. A: -4/3
B: -4/5
C: 3/...
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