Given,
tan2A=cot(A-18degree) -----(i)
or tan2A=cot(90-2A) --------(ii)
From (i) and (ii),we get
cot(A-18degree)=cot(90-2A)
or A-18=90-2A
or A+2A=90+18
or 3A =108
or A =108/3
or A =36 degree
Displaying ads are our only source of revenue. To help Teachoo create more content, and view the ad-free version of Teachooo... please purchase Teachoo Black subscription.
Please login to view more pages. It's free :)
Teachoo gives you a better experience when you're logged in. Please login :)
Solve all your doubts with Teachoo Black!
Teachoo answers all your questions if you are a Black user!