If 4 − 2sin²θ − 5cosθ = 0, 0° < θ < 90°, then the value of sinθ + tanθ is

Question :

If 4 − 2sin²θ − 5cosθ = 0, 0° < θ < 90°, then the value of sinθ + tanθ is :

Options :

  • 3√2/2
  • 3√3/2
  • 3√2
  • 2√3

correct answer : b)

(b) Put θ= 60°
sinθ + tanθ

√3/2 + √3 =  3√3/2

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