Question

tan15° value kya hai
answer​

Answer 1

Step-by-step explanation:

tan(A-B)=tanA-tanB/1+tanA.tanB

tan(45°-30°)=tan45°-tan30°/ 1+tan45°.tan30°

tan(15°)=1-1/root 3/1+1.1/root 3

tan(15°)=-1+root 3/root 3/1+root 3/root 3

tan(15°)=3-root 3/3+root 3

tan(15°)=3-1.73/3+1.73

tan(15°)=1.27/4.73

tan(15°)=0.2685