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Solution of the question is

The value of  tan–1(1) + cos–1(–1/2) + sin–1(–1/2) is equal to -
  • a)
    3π/4
  • b)
    5π/12
  • c)
    π/4
  • d)
    13π/12
Correct answer is option 'C'. Can you explain this answer?

Ref: https://edurev.in/question/515064/The-value-of-tan–1-1-cos–1-–12-sin–1-–12-is-equal-to-a-3π4b-5π12c-π4d-13π12Correct-answer-is-o

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