Question

cos theta + sec theta =5/2
then what is cos^2 theta + sec^2 theta

Answer 1

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