3/c-7/2c

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Solution for 3/c-7/2c equation: 


D( c )

c = 0

c = 0

c = 0

c in (-oo:0) U (0:+oo)

3/c-((7/2)*c) = 0

(-7/2)*c+3/c = 0

3*c^-1-7/2*c^1 = 0

(3*c^0-7/2*c^2)/(c^1) = 0 // * c^2

c^1*(3*c^0-7/2*c^2) = 0

c^1

(-7/2)*c^2+3 = 0

(-7/2)*c^2+3 = 0

DELTA = 0^2-(3*4*(-7/2))

DELTA = 42

DELTA > 0

c = (42^(1/2)+0)/(2*(-7/2)) or c = (0-42^(1/2))/(2*(-7/2))

c = (42^(1/2))/(-7) or c = (42^(1/2))/7

c in { (42^(1/2))/(-7), (42^(1/2))/7} 

c in { (42^(1/2))/(-7), (42^(1/2))/7 }

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