Year 12s: what will be the first way you research your future options? >>

lol help

I have been staring at probably the most simplest question for the last 20 mins yet I still cant work it out. Too many past papers have numbed my brain

how the **** do they equal each other

Reply 1

math42

Original post by Daniel9998

I have been staring at probably the most simplest question for the last 20 mins yet I still cant work it out. Too many past papers have numbed my brain

how the **** do they equal each other

Multiply by (tan^2(theta))/(tan^2(theta))

Reply 2

HapaxOromenon

Original post by Daniel9998

I have been staring at probably the most simplest question for the last 20 mins yet I still cant work it out. Too many past papers have numbed my brain

how the **** do they equal each other

Multiply the numerator and denominator by tan^2theta.
The numerator becomes 2/tantheta*tan^2theta = 2tantheta
the denominator becomes 1/tan^2theta*tan^2theta - 1*tan^2theta = 1 - tan^2theta, as required.