Which statement describes the solutions of this equation? x/3 + x-1/x+4 = x+3/x+4 Possible answers: A. The equation has no valid solutions and two extraneous solutions B. The equation has one valid solution and no extraneous solutions. C. The equation has one valid solution and one extraneous solution. D. The equation has two valid solutions and no extraneous solutions.

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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

step-by-step explanation:

1

60°

step-by-step explanation:

the measure angle of c in an isosceles triangle abc is 60° because in isosceles triangle,the measures of all the angles is 60°.

step-by-step explanation: