Mister Exam
Other calculators
-
How to use it?
- Equation:
-
Equation 12x+5(6-3x)=10-3x
-
Equation 3x^2+6x=0
-
Equation 25x^2=16
- Equation ax+by+c=0
- Express {x} in terms of y where:
- -10*x-16*y=-6
- 16*x+7*y=8
- -11*x+4*y=-8
- 17*x-11*y=2
-
Identical expressions
- log(x)+ one = zero
- logarithm of (x) plus 1 equally 0
- logarithm of (x) plus one equally zero
- logx+1=0
- log(x)+1=O
-
Similar expressions
- log(x)-1=0
- sqrt(30)*log(x-10*sqrt(30))/2-sqrt(30)*log(x+10*sqrt(30))/2=Const-t
- log(x+1)=2*(x-2)^2
- 3+2*log(x+1)*3=2*log3*(x+1)
- log(3*x-17)=log(x+1)
log(x)+1=0 equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the equation
$$\log{\left(x \right)} + 1 = 0$$
$$\log{\left(x \right)} = -1$$
This equation is of the form:
By definition log
then
$$x = e^{- 1^{-1}}$$
simplify
$$x = e^{-1}$$
$$\log{\left(x \right)} + 1 = 0$$
$$\log{\left(x \right)} = -1$$
This equation is of the form:
log(v)=p
By definition log
v=e^p
then
$$x = e^{- 1^{-1}}$$
simplify
$$x = e^{-1}$$
Sum and product of roots
[src]
sum
-1 e
$$e^{-1}$$
=
-1 e
$$e^{-1}$$
product
-1 e
$$e^{-1}$$
=
-1 e
$$e^{-1}$$
exp(-1)
The graph