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If sinθ=-1/5 and tanθ<0, find cosθ?

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  1. tanø cannot be less than zero, so undefined.

    otherwise it will =¡


  2. S= O/H C= A/H T=O/H

    SOH CAH TOA

  3. look.

    you know this/? Tangent = sin on cosine

    so if we want cosin.. we can say that cos = sin on tan

    sin is -1/5  over 0

    infinity

  4. Ó¨ in 4th quadrant

    cos Ө = √24 / 5
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