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The gernal solution of eqn 2cos2x 3.2cos²x – 4 Please reply soon

The gernal solution of eqn 
2cos2x 3.2cos²x – 4
Please reply soon

Grade:11

1 Answers

Deepak Kumar Shringi
askIITians Faculty 4404 Points
5 years ago
not able to understand the question properly please repost your question with an image

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