How do you simplify (1+tantheta)/(1+cottheta)?

2 Answers
Aug 1, 2018

(1+tantheta)/(1+cottheta)=tantheta

Explanation:

Here,

(1+tantheta)/(1+cottheta)=(1+tantheta)/(1+1/tantheta)to[becausecottheta=1/tantheta]

=>(1+tantheta)/(1+cottheta)= (1+tantheta)/((tantheta+1)/tantheta)

=>(1+tantheta)/(1+cottheta)=tantheta((1+tantheta)/(tantheta+1))

:.(1+tantheta)/(1+cottheta)=tantheta

Aug 1, 2018

color(purple)(=> sin theta / cos theta = tan theta

Explanation:

(1 + tan theta) / (1 + cot theta)

=> (1 + sin theta/cos theta) / (1 + cos theta / sin theta)

=> (cancel(cos theta + sin theta)/cos theta) / (cancel(sin theta + cos theta)/sin theta)

color(purple)(=> sin theta / cos theta = tan theta