+0  
 
+5
92
1
avatar

3m^-3+3m^-3=18 so what does M equal?

Guest Feb 27, 2017
Sort: 

1+0 Answers

 #1
avatar
0

Solve for m:
6/m^3 = 18

Take the reciprocal of both sides:
m^3/6 = 1/18

Multiply both sides by 6:
m^3 = 1/3

Taking cube roots gives 1/3^(1/3) times the third roots of unity:
Answer: |m = -(-1/3)^(1/3)          or m = 1/3^(1/3)          or m = (-1)^(2/3)/3^(1/3)

Guest Feb 27, 2017

12 Online Users

avatar
avatar
We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details