Sunday

February 1, 2015

February 1, 2015

Posted by **elley** on Thursday, November 6, 2008 at 8:22pm.

x+ln(x+1)=0, 0<and equal to x <and equal to 3

- Calculas HS -
**Reiny**, Thursday, November 6, 2008 at 8:36pmx+ln(x+1)=0 , 0 ≤ x ≤ 3

write your equation as ln(x+1) = -x

now let the left side by

y = ln(x+1) and the right side

y = -x

and make a quick sketch of each on the same x-y plane.

the first one is the log function crossing the x axis at the origin, slowing rising in the first quadrant, and dropping down into the third quadrant.

the other graph is a straigh line with slope of -1 and passing through the origin.

Clearly they can only cross at x=0, which becomes your only answer.

check : if x=0

LS = 0 + ln(0+1)

= 0 + 0 = 0 = RS

**Answer this Question**

**Related Questions**

unique solution - How do I show that the equation x^4 + 3x + 1 = 0, -2 <= x &...

math - Consider an equilateral triangle with points located at each vertex and ...

calculus - solve the following inequality 15x-16 less than or equal to 15/x is ...

Calculus - Solve the following initial value problem and determine the interval ...

ap chemistry - for the following, mix the equal volumes of one solution from ...

calculas - caluclas (intersection of three planes) HELP!!!? in the equations k ...

calculus - solve the following inequality. write your solution in interval ...

algebra - solve the inequality. Express the solution using interval notation and...

physics - A beam of electrons with momentum p=10^-23 kg m/s passed through a ...

Algebra - Can you please check my answers? Solve the rational inequality and ...