In math exponential function is a function of ex, where e is the digit such to the significance ex the same its contain consequent.
For example,
`e^x` is an exponential function
In math logarithmic function is an inverse function of the expoential function.
`log_a (x)`
Use exponential and logarithmic calculator easily get an answer.
Enter the exponential equations then click the answer button. Perform the exponential operation and get the answer.Check the answer in manual calculation `3^(2x-1)`
`3^(2x-1) = (3^3)^x`
`= 3^3x`
If the base value is same equal to one another
2x-1 = 3x
-1 = 3x-2x
-1= x (or) x = -1
Calculator answer as 0.698970004336.
Problem 1:-
Find x in the equation `(1+(.10/12))^12x= 2`
Solution:-
`(1+(.10/12))^12x - 2`
Multiply Ln on both sides
`Ln(1+(.10/12))^12x = Ln(2)`
Simplify the equation
`12x Ln(1+(.10/12)) = Ln(2)`
`12x Ln(1+(.10/12))`
`x = (Ln(2))/(12Ln(1+.10/12))`
x = 6.9603
Using calculator to verify the answer.
For example,
`e^x` is an exponential function
In math logarithmic function is an inverse function of the expoential function.
`log_a (x)`
Use exponential and logarithmic calculator easily get an answer.
Basic Solving Exponential and Logarithmic Calculator: -
Enter the exponential equations then click the answer button. Perform the exponential operation and get the answer.Check the answer in manual calculation `3^(2x-1)`
`3^(2x-1) = (3^3)^x`
`= 3^3x`
If the base value is same equal to one another
2x-1 = 3x
-1 = 3x-2x
-1= x (or) x = -1
Calculator answer as 0.698970004336.
Example Problems for Exponential and Logarithmic Calculator: -
Problem 1:-
Find x in the equation `(1+(.10/12))^12x= 2`
Solution:-
`(1+(.10/12))^12x - 2`
Multiply Ln on both sides
`Ln(1+(.10/12))^12x = Ln(2)`
Simplify the equation
`12x Ln(1+(.10/12)) = Ln(2)`
`12x Ln(1+(.10/12))`
`x = (Ln(2))/(12Ln(1+.10/12))`
x = 6.9603
Using calculator to verify the answer.
Problem 2:-
Find x in the equation 400 = 5000 `(1- (4/4+e^(-0.002x)))`
Solution:-
Divide 5000 on both sides
0.08 = `(1- (4/4+e^(-0.002x)))`
Subtract `e^(-0.002x)` on above equation
0.092 = `4/(4+e^(0.002))`
Multiply 4+`(e^-0.002x)` on both sides
0.092 `(4+e^(0.002x))` = 4
Divide 0.92 on both sides
`(4+e^(0.002x))` = 4.34782608696
Subtract 4 on both sides
`e^(0.002x)` = 0.34782608696
Multiply Ln on both sides
`Ln(e^(0.002x)) = Ln (0.34782608696)`
Simplify the equations
-0.002xLn(e) = Ln (0.34782608696)
= -1.0560526
We know that Ln(e) = 1
Divide -0.002 on both sides
`x = (Ln(0.34782608696))/-0.002`
= 528.02633
Using calculator to verify the answer.
Problem 3:-
Find log 1000 verify the answer by using a calculator.
Solution:-
Expressing the given expression in scientific notation:
log 1,000 = log 103
Since 1,000 is the 3rd power of 10,
log 1,000 = 3
Using calculator to verify the answer.
Problem 4:-
Find log 0.0001 verify the answer by using a calculator.
Solution:-
Rewriting the given expression in scientific notation:
log 0.0001 = log 10–4
Since 0.0001 is –4th power of 10,
log 0.0001 = –4
Using calculator to verify the answer.
Find x in the equation 400 = 5000 `(1- (4/4+e^(-0.002x)))`
Solution:-
Divide 5000 on both sides
0.08 = `(1- (4/4+e^(-0.002x)))`
Subtract `e^(-0.002x)` on above equation
0.092 = `4/(4+e^(0.002))`
Multiply 4+`(e^-0.002x)` on both sides
0.092 `(4+e^(0.002x))` = 4
Divide 0.92 on both sides
`(4+e^(0.002x))` = 4.34782608696
Subtract 4 on both sides
`e^(0.002x)` = 0.34782608696
Multiply Ln on both sides
`Ln(e^(0.002x)) = Ln (0.34782608696)`
Simplify the equations
-0.002xLn(e) = Ln (0.34782608696)
= -1.0560526
We know that Ln(e) = 1
Divide -0.002 on both sides
`x = (Ln(0.34782608696))/-0.002`
= 528.02633
Using calculator to verify the answer.
Problem 3:-
Find log 1000 verify the answer by using a calculator.
Solution:-
Expressing the given expression in scientific notation:
log 1,000 = log 103
Since 1,000 is the 3rd power of 10,
log 1,000 = 3
Using calculator to verify the answer.
Problem 4:-
Find log 0.0001 verify the answer by using a calculator.
Solution:-
Rewriting the given expression in scientific notation:
log 0.0001 = log 10–4
Since 0.0001 is –4th power of 10,
log 0.0001 = –4
Using calculator to verify the answer.
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