Question

2 Tan30°/1+Tan 45° =​

Answer 1

Answer:

tan 30° = 1/root 2

so 2 tan 30°(1+tan²30°)= 2×(1/ root 3)/(1+root 3²)

(2/ root 3)/(4/3)= root 3/2 = sin 60°

tan 65° = 1

so,(1-tan²45°)/(1- tan²45°)= (1-1)/(1+1) = 0

therefore, tan0° = sin0° = cos90°

hope this will help you....