Which is an equation in point-slope form for the given point and slope?
point: (1, –7); slope:
a.
y-7=-2/3(x+1)
b.
y-7=2/3(x-1)
c.
y+7=-2/3(x-1)
d.
y+7=2/3(x+1)

step-by-step explanation:

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step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2