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14 December, 14:44

3 tan x cos x cot x = 3cosx. true or false?

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Answers (2)
  1. 14 December, 15:07
    0
    Tan x = 1 / cot x

    so tanx * cot x = 1/cot x * cotx = 1

    so 3 tanx cos x cotx = 3 cos x * 1 = 3 cos x

    True
  2. 14 December, 15:10
    0
    And the answer is false.
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