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JEE Main202225 Jul 2022Morning ShiftMathematicsTrigonometric EquationsActual

The number of solutions of cos x = sin x , such that - 4 π ≤ x ≤ 4 π is

Options

  1. A4
  2. B6
  3. C8
  4. D12

Correct answer

C. 8

Step-by-step solution

The number of solutions will be the number of points of intersection of the graphs y = cos x   &   y = sin x Plotting the two curves on the same axis, we get, the number of intersection as 8

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