cos theta + sec theta =5/2
then what is cos^2 theta + sec^2 theta
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Step-by-step explanation:
(cosθ+secθ)=(5/2)
(cosθ+secθ)²=25/4
cos²θ+sec²θ+2cosθsecθ=25/4
cos²θ+sec²θ=(25/4)-2
cos²θ+sec²θ=17/4
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