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Solve tan^2 x /2 - 2cos^2 x-1 ​
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2 votes
Solve tan^2 x /2 - 2cos^2 x-1


​

User Nikhil Prabhu
by
6.9k points

1 Answer

5 votes
i got -2x-1








explanation: yeah
User Dobby Dimov
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7.1k points
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