Question

please help me with this question. Plz give the full explanation how to do it.​

Answer 1

Answer:

cot(54°)/tan(36°)+tan(20°)/cot(70°)-2=?

Answer:-

=we can write cot(54°)=tan(90°-36°)

and tan(20°)=cot(90°-70°)

=(tan36°/tan36°)+(cot 70°/cot70°)-2

=1+1-2

=2-2

=0

Hence,

prooved