How do you evaluate sin(11π/6)?

1 Answer
sankarankalyanam
Mar 17, 2018

color(green)(- sin (pi/6) =- sin 60 = - (1/2)

Explanation:

To find the value of sin ((11pi)/6)

sin ((11pi)/6) = sin (((11pi)/6) - 2pi)

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=> sin -(pi/6) = - sin (pi/6) as sin in IV quadrant is negative.

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color(green)(- sin (pi/6) =- sin 60 = - (1/2) from the above table.

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