Solve this inequality .

squarring both sides , i got

, rearranging them

, till here am i correct , and i don see a way to solve it from here .

Printable View

- January 16th 2009, 12:43 AMmathaddictinequality confucion
Solve this inequality .

squarring both sides , i got

, rearranging them

, till here am i correct , and i don see a way to solve it from here . - January 16th 2009, 12:53 AMIsomorphism
- January 16th 2009, 04:34 AMmathaddictRe :
- January 16th 2009, 08:25 AMearboth
Unfortunately no.

From ......you'll get:

A product of 2 factors is positive if both factors are positive or both factors are negative. Since is true for all x, the second case is impossible. Therefore (keep in mind that is true for all x):

Now use the definition of the absolute value:

By the way:

Quote:

From there , i got x>3 and x<-3