the exact value of sec^2theta given csctheta=7

Given csctheta=7 use trigonometric identities to find the exact value of sec^2theta
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cscθ=7, so sinθ=1/7, cos2θ=1-sin2θ=1-1/49=48/49.

sec2θ=1/cos2θ=49/48.

by Top Rated User (1.2m points)

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