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4 July, 08:25

Sec (a) + tan (a) = sec (a) - tan (a)

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  1. 4 July, 12:20
    0
    a = π n for n element Z

    Step-by-step explanation:

    Solve for a:

    sec (a) + tan (a) = sec (a) - tan (a)

    Subtract sec (a) - tan (a) from both sides:

    2 tan (a) = 0

    Divide both sides by 2:

    tan (a) = 0

    Take the inverse tangent of both sides:

    Answer: a = π n for n element Z
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