Find the value of in
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Answers
Question
Find the value of a real number in the equation .
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Solution
In this exponent equation, we can find common terms. Let the common term be .
This results to or . However, cannot be valid because the graph of is always above the x-axis. (Attachment included.) This leads to or .
Now is obtained by solving the quadratic equation.
So, the value of is .
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This is the required answer.
Answer:
x= log(-1/2+√13/2 ) to the base 3
(or)
x=log(-1/2-√13/2 ) to the base 3
Step-by-step explanation:
let 3^x=a
then a (1+a)=3
a^2+a=3
a^2+a-3=0
by applying quadratic formula
a=-1/2+√13/2 (or) -1/2-√13/2
so 3^x=-1/2+√13/2
x= log(-1/2+√13/2 ) to the base 3
(or)
x=log(-1/2-√13/2 ) to the base 3
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