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sin(-11pi)/(3)...

`sin(-11pi)/(3)`

Text Solution

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`sin(-11pi)/(3) = -sin(11pi)/(3)`
`=-sin(2 xx 2pi -pi/3)`
`=-(-sinpi/3) = sinpi/3 = sqrt(3)/2`
Therefore, `sin(-11pi)/(3) = sqrt(3)/2`. Ans.
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