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MHT CET2016MathematicsTrigonometric Ratios & Identities

tan - 1 ⁡ 3 - sec - 1 ⁡ - 2 cosec ⁡ - 1 - 2 + cos - 1 ⁡ - 1 2 =

Options

  1. A4 5
  2. B- 4 5
  3. C3 5
  4. D0

Correct answer

B. - 4 5

Step-by-step solution

By solving we will get, tan - 1 ⁡ 3 - sec - 1 ⁡ - 2 cos e c - 1 ⁡ - 2 + cos - 1 ⁡ - 1 2 = π 3 - 2 π 3 - π 4 + 2 π 3 = - π 3 5 π 12 = - 4 5

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