यदि 0°<θ<90° और COS2θ = 3(cot2θ - cos2θ) है तो, (1/2 sec θ + sin θ)-1 का मान होगा-

  • 1

    2(√3-1)

  • 2

    √3+1

  • 3

    √3+2

  • 4

    2(2-√3)

Answer:- 4

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