Prove that ; cosec x . cosec 2x . sin 4x . cos 6x . cosec 10x cos 3x + cos 5x cos 7x cos 9x sin 2x sin 4x sin 4x sin 6x sin 6x sin 8x sin 8x sin 10x

Q: that "C₁ sin 2x + "C₂ sin 4x + "C3 sin 6x 1+ "C₁ cos2x+ "C₂ cos 4x + "C3 cos E x; where ne N

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Q: 5. Prove: tan²xsin²x = tan²x – sin²x

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Q: Express as a product. sin 4ẞ + sin 10ẞ + sin 22ẞ + sin 16ẞ

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Q: Verify the identity. (sec ² 0+1) (- sin² 0+1) = 2-sin ²0 20 rch Which of the following four…

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Q: Verify the identity. 2 cos 2x sin 2x = 2 csex 6 sinx sinx COSX Continue Statement 2 cos 2x sin 2x…

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Q: Verify the identity. cos 7x- cos 9x tan 8x sin 7x- sin 9x Statomont

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Q: d da cos(3) = O-3 sin (3²) O 32.cos(3²) -3.sin(3²).In 3. O sin (3²) O3 cos(32).In 3

A: Given

Q: Show that n. In(cos 2k+2) = - In (2"+ sin 2n+2). k=0 Hint: sin 20 = 2 sin 0 cos 0.

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Q: Express as a sum.(sin ax)(cos bx)

A: Given : (sin ax)(cos bx)

Q: (b) cos cos ( 13 ) 131 18 21 18 21 sin COS -sin 18 18

A: To evaluate the given trigonometric expression