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2 December, 15:30

What is the basic trigonometric identity you would use to verify that sec x sin x = tan x

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  1. 2 December, 15:55
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    secx=1/cosx

    1. To solve this problem you must apply the following proccedure:

    2. You have to verify if secx sinx=tanx, so, you have:

    3. You know that secx=1/cosx, and tanx=sinx/cosx, therefore:

    (secx) (sinx)

    (1/cosx) (sinx)

    sinx/cosx

    tanx
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