If \left(\right. cosθ + secθ \left.\right) = \frac{5}{2} then (cos2θ + sec2θ) = ?

Foundation

Mathematics Foundation

Introduction to Trigonometry

Question

If $(cosθ + secθ) = \frac{5}{2}$ then (cos²θ + sec²θ) = ?

$\frac{33}{4}$

$\frac{21}{4}$

$\frac{17}{4}$

$\frac{29}{4}$

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