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COMEDK2016MathematicsTrigonometric Ratios & Identities

Which one of the following equations has no solution?

Options

  1. A3 - =2
  2. B+ = 2
  3. Ccosec =1
  4. Dcosec - = cosec

Correct answer

C. cosec =1

Step-by-step solution

By option (c), cosec =1 =12 =2 2 =2 As we know that range of x is [-1,1] . Hence, this equation has no solution.

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