How do you find the value of tanπ3?
Calculate the value of trigonometric ratio at given angle:
Let x be the value of tanπ3.
∴x=tanπ3
We know that π=180°
=tan180°3
=tan60°
=sin60°cos60° [∵tanθ=sinθcosθ]
=3212 [∵sin60°=32;cos60°=12]
=3
Hence, the value of tan(π3) is 3.
You know that. Can you predict what the decimal expansion of are, without actually doing the long division? If so, how?
[Hint: Study the remainders while finding the value of carefully.]