Basic Algebra: tan δ = 1/wCR | Confirmation Needed

[rwooduk]

please see attached image

why has our lecturer put tan δ = 1 / wCR ?

if you divide the two equations to get tan wouldn't it be R/wC ?

thanks for any conformation

 

[Simon Bridge]

if you divide the two equations to get tan wouldn't it be R/wC

... no.

Please show your working.

 

[rwooduk]

... no.

Please show your working.

you're right, too much revision, can't think straight!

(-1/wc) / (R/1) = (-1/wc) * (1/R) = (-1/wRc)