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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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