If cos α and cos β (0 < α < β < π) are the roots of the quadratic equation 4x^2 – 3 = 0, then what is the value of sec α × sec β? - NDA Mathematics 2018 (II)

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If cos α and cos β (0 < α < β < π) are the roots of the quadratic equation 4x^2 – 3 = 0, then what is the value of sec α × sec β?