Prove that : ( sin 4 theta + cos 4 theta )/ 1-2 sin square theta cos square theta = 1

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Prove that : ( sin 4 theta + cos 4 theta )/ 1-2 sin square theta cos square theta = 1
cbse class 10 math exercise 13A question 2
Rs aggarwal class 10th math exercise 13A question 2
  1. Dear Mathematician
  2. sin 4 theta minus cos 4 theta / sin square th
  3. sin square theta cos square theta
  4. sin square theta cos square theta barabar
  5. sin square theta cos square theta barabar 1
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