Question

tan 20°/tan 70 + tan 40 /tan 50​

Answer 1

Answer:

Step-by-step explanation:

(tan(90-70)/tan70)+(tan(90-50)/tan50)

=cot70/tan70+cot50/tan50

=cot^2(70)+cot^2(50)

Answer 2

Just use the formula:

tan (90° - A)= cot A

and then add the answers....

You will get the answer