Question

Can someone please send me the correct answer for the below question.Please answer it with a method... I WILL MARK THE ANSWER AS BRAINLIEST IF IT IS CORRECT.
Please prove the answer

Answer 1

this is your answer. ...

Answer 2

LHS = tan(90-80) tan(90-75) tan 75 tan80
         = cot 80 cot75 tan 75 tan 80
         = 1/tan80 1/tan75 tan75 tan80
         =1 
         =RHS
 hence proved