What form of deductive reasoning is used in this argument? If a triangle is scalene, it has no sides the same length. If a triangle has no sides the same length, then it isn’t equilateral. If a triangle is scalene, then it isn’t equilateral. A. law of detachment B. law of syllogism C. law of contrapositive D. law of converse E. identification of counterexample

easy math just plug in a and b

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hope it you

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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

i dont know

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umm. i dont know

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