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Prove that

cscx / cosx = tanx + cotx

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1 answer
  1. LS = cscx/cosx
    = (1/sinx)/cosx
    = 1/(sinxcosx)

    RS = sinx/cosx + cosx/sinx
    = (cos^2x + sin^2x)/(sinxcosx)
    = 1/(sinxcosx)
    = LS

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