Answer:
7√3/12.
Explanation:
sinθ=1/7
cosθ = √(1 - sin^2θ) = √ (1 - 1/49)
= √(48/49)
= 4√3/7
sec θ = 1/ cosθ
= 1 / 4√3/7
= 7/4√3
= 7√3/12
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