Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation sin(x)=2
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Equation log(4/(7-x))/log(x^2)=5
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Equation cos(x)=3/4
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Equation 1-2*(5-2*x)=-x-3
- Express {x} in terms of y where:
- 4*x+15*y=19
- -2*x+1*y=-8
- -14*x-3*y=-5
- (x^2+y^2-1)^3-x^2*y^3=0
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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
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Similar expressions
- log(x)-1=0
- log(x+1)=2*(x-2)^2
- f*(x)=(log(3)/log(x))+(1)/(1+tan(x)^(2))
- sqrt(30)*log(x-10*sqrt(30))/2-sqrt(30)*log(x+10*sqrt(30))/2=Const-t
- 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