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3. trigonometric functions
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Q8 of 62 Page 73

Prove

To Prove

RHS = cot2 x







∴ LHS = RHS


Hence, Proved.


More from this chapter

All 62 →
6

Prove

7

Prove

9

Prove

10

10. Prove sin (n + 1)x sin (n + 2)x + cos (n + 1)x cos (n + 2)x = cos x

Questions · 62
3. trigonometric functions
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