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Posted by on Wednesday, November 28, 2012 at 11:09am.

Simplify expression tan(-x)csc(x) ???

Cos x
-cos x
Sin x
Sec x
-sec x

  • Simplify - , Wednesday, November 28, 2012 at 11:14am

    tan(-x) = -tan(x)
    so, you have
    -sin/cos * 1/sin = 1/cos = sec

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