Question #b092d

1 Answer
Noah G
May 9, 2016

(1 + tanx)/(1 + cotx) = (1 - tanx)/(cotx - 1)

(1 + (sinx/cosx))/(1 + (cosx/sinx)) = (1 - (sinx/cosx))/((cosx/sinx) - 1)

((cosx + sinx)/cosx)/((sinx + cosx)/sinx) = ((cosx - sinx)/cosx)/((cosx - sinx)/sinx)

sinx/cosx = sinx/cosx

Identity proved!!

Hopefully this helps!

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