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AP EAMCET202421 May 2024Evening ShiftMathematicsTrigonometric EquationsActual

Number of solutions of the trigonometric equation 2 2 - 2 +1=0 lying in the interval [0, ] is

Options

  1. A2
  2. B3
  3. C4
  4. D5

Correct answer

C. 4

Step-by-step solution

aligned & 2 2 - 2 +1=0 & Let 2 =x 2 x- 1 x +1=0 & 2 x^2+x-1=0 x=-1, 1 2 & 2 =-1, 1 2 aligned Required number of solutions are 4.

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