C2 maths help

orange8120

Prove that:
(tanx*sinx)/(1-cosx)=1+(1)/(cosx)
Many thanks

Reply 1

nerak99

13

Original post by orange8120

Prove that:
(tanx*sinx)/(1-cosx)=1+(1)/(cosx)
Many thanks

Could you rewrite that please. The thing you wrote is not true.

The chances are that (at C2) you need to write tan as sin/cos and cancel and possibly a bit more depending on what you are trying to prove

Reply 2

joostan

13

Original post by nerak99

Could you rewrite that please. The thing you wrote is not true.

The chances are that (at C2) you need to write tan as sin/cos and cancel and possibly a bit more depending on what you are trying to prove

Why not?
( sinx)^2=1-(cosx)^2=(1-cosx)*(1+cosx)

Original post by nerak99

Could you rewrite that please. The thing you wrote is not true.

The chances are that (at C2) you need to write tan as sin/cos and cancel and possibly a bit more depending on what you are trying to prove