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5 April, 14:26

Trigonometry

Reference Angles and Triangles

The line y=3x creates an acute angle θ when it crosses the x - axis. Find the exact value of sec θ?

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  1. 5 April, 14:56
    0
    sqrt (10)

    Step-by-step explanation:

    tan (θ) = slope = 3

    1 + tan²θ = sec²θ

    1 + 3² = sec²θ

    sec²θ = 10

    secθ = sqrt (10)

    sqrt: square root
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