Choose the correct pair of expressions to complete the solution of Sine (x + StartFraction 3 pi Over 2 EndFraction) = negative StartFraction StartRoot 3 EndRoot Over 2 EndFraction, left-bracket 0, 2 pi right-bracket : blank times 0 + cosine x times blank minus StartFraction StartRoot 3 EndRoot Over 2 EndFraction: cos x, 0
–sin x, –1
sin x, –1
–cos x, 0

C, sin(x), -1

Step-by-step explanation:

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split up the equation using the sine sum equation

∠acb = 8°

step-by-step explanation:

∠xba lies on the circle and is half the measure of the intercepted arc ax

hence

measure of arc ax = 2 × 42° = 84°

∠acb is outside the circle and is

∠acb = (arcab - arcax ), hence

∠acb = 0.5 (100 - 84) = 0.5 × 16° = 8°

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step-by-step explanation: