Question

Answer needed with step by step explanation.....​

Answer 1

hey mate!

Here's ur answer:

= Sec²-tan²+1/1

=1+1/1

=2/1

=2

[where cosec(90-@) =sec,

cot(90-@) = tan,

tan10 = tan(90-10) = cot80

tan 20 = cot 70;

So, ultimately tan80 and cot80 will be cut, same for tan 20 and tan70

So only tan45 will be left in denominator which equals 1.

Hope u understand!!

Mark me as the BRAINLIEST!

Answer 2

PLEASE MARK BRAINLIEST