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Dafna11 [192]
3 years ago
12

Which expression is equivalent to log c x2-1/5x

Mathematics
2 answers:
Aleks04 [339]3 years ago
6 0
Answer
C is the correct answer

㏒(x²-1) - (㏒5 + ㏒x)


Explanation
The law of logarithm says; 
㏒AB = ㏒₃A + ㏒₃B
㏒C/B = ㏒₃C - ㏒₃B
So, the given equation will be,

㏒((x²-1)/5x) = ㏒(x²-1) - ㏒5x
                      = ㏒(x²-1) - (㏒5 + ㏒x)

              
navik [9.2K]3 years ago
6 0
 Hello! For this problem we need to make use of two existing logarithmic properties. These are:

1. log \frac{M}{N} is equal to log M-logN
2. log(MN) is equal to log M+logN

Following the first property, we can simplify the expression to log (x^{2}-1)-log(5x).

Then, we will use the second property to the term 5x. The final form of the expression would then be log(x^{2}-1)-(log5+logx).

ANSWER: log(x^{2}-1)-(log5+logx)  (third option)
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Consider the series 3/2 + 3/4 + 3/8 + 3/16 + ... What expression defines Sn?
snow_lady [41]

For the series 3/2 + 3/4 + 3/8 + 3/16 + ...the sum will be calculated by the formula  3(\dfrac{1}{2})^n.

<h3>What is number series?</h3>

When the numbers are arranged in a series with some logic then it is called as the number series.

here we have a series:

\dfrac{3}{2}+\dfrac{3}{4}+\dfrac{3}{8}+\dfrac{3}{16}+............

The sum of the series will be given as:

S_n=3(\dfrac{1}{2}+\dfrac{1}{4}+\dfrac{1}{8}+\dfrac{1}{16}+............)

S_n=3 (\dfrac{1}{2})^n

Hence for the series 3/2 + 3/4 + 3/8 + 3/16 + ...the sum will be calculated by the formula  3(\dfrac{1}{2})^n

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2 years ago
Ig1000+log342 - 1 -123​
Brilliant_brown [7]

Answer:

log(342) - 121

Step-by-step explanation:

-121 + log(342) is a transcendental number

-115.165189262937394847783249972808918485...

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