juliacayo juliacayo

08-05-2017
Mathematics

contestada

Without using a calculator how do you evaluate tan 5π/6.

Respuesta :

Crazyformath Crazyformath

08-05-2017

Remember that pi=180,
so 180/6=30, 30*5=150,
what's tan 150?
Remember that 150 degrees is in the 2nd quadrant, and this is tangent, so it means the answer must be negative, because tan 150= - tan 30, and -tan30=-√3/3.

Answer: -√3/3.

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