Math, asked by babulal1970s, 3 months ago

If tan theta. tan 2theta = 1, then cos 2theta = ?​

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Answered by surajsg2310
1

Answer: hope this is helpful to u ....

Step-by-step explanation:

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babulal1970s: that is not tan^2 theta, that is : tan theta × tan 2×theta
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