will award best answer Circular Functions help please ?

The value of the expression: sin(11pi/6) - cos(8pi/3) + tan(3pi/4)

a) 2

b) 0

c) 1

d)-1

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  • 6 months ago
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    sin(11π/6) => sin(-π/6) = -sin(π/6) = -0.5

    cos(8π/3) => cos(2π/3) = -cos(π/3) = -0.5

    tan(3π/4) => -tan(π/4) = -1

    Hence, -0.5 - (-0.5) - 1 => -1

    :)>

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