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Rewrite tan 88 deg in terms of its cofunction

How does that end up????

  • Trig -

    Notice there are only 3 trig names
    all have matching co-function
    sine --- cosine
    secan ---cosecant
    tangent -- cotangent , so that

    sinØ = cos(90°- Ø)
    secØ = csc(90° - Ø)
    tanØ = cot(90° - Ø)

    so tan 88° = cot 2°

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