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adell [148]
4 years ago
15

For all real numbers a and b, 2a • b = a2 + b2 True or False? explain please

Mathematics
1 answer:
vodka [1.7K]4 years ago
3 0

Answer:

True

Step-by-step explanation:

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Cane someone do this please
Jobisdone [24]

The product of the matrices is an identity matrix. Then Both the matrices are multiplicative inverse to each other.

<h3>What is the matrix?</h3>

A matrix is a specific arrangement of items, particularly numbers. A matrix is a row-and-column mathematical structure. The a_{ij} element in a matrix, such as M, refers to the i-th row and j-th column element.

The matrices are given below.

\left[\begin{array}{ccc}-3&7\\-2&5\end{array}\right] \  and \ \left[\begin{array}{ccc}-5&7\\-2&3\end{array}\right]

Then show that both the matrices are multiplicative inverse to each other.

If the product of the matrices is an identity matrix then the matrices are multiplicative inverse to each other.

Then we have

\left[\begin{array}{ccc}-3&7\\-2&5\end{array}\right]  \left[\begin{array}{ccc}-5&7\\-2&3\end{array}\right] = \left[\begin{array}{ccc}1&0\\0&1\end{array}\right]

Then both the matrices are multiplicative inverse to each other.

More about the matrix link is given below.

brainly.com/question/9967572

#SPJ1

4 0
3 years ago
Rewrite the expression using rational exponents .
scZoUnD [109]

Answer:

Step-by-step explanation:

\sqrt[5]{(3y)^{4}} = [(3y)^{4}]^{\frac{1}{5}}=(3y)^{4*\frac{1}{5}}=(3y)^{\frac{4}{5}}

6 0
3 years ago
1. Which ratios form a proportion? a. 4/9, 12 / 25 b. 3 / 7, 18 / 42 c. 5/11, 20/45 d. 5/8, 15/25. 2. Which ratio forms a propor
harkovskaia [24]
I am pretty sure that the right answer for the first question which is being asked is the second option - <span><span>b. 3 / 7, 18 / 42
</span>What about the next one, I bet it's </span> d. 60 / 100. 3
And the last one is  a. 5/8=15/24 
4 0
4 years ago
Read 2 more answers
What is 3.4256 rounded to the nearest hundredth
mash [69]

Answer:

3.43 I think that's it.

5 0
3 years ago
HELPPPPPPP!!!!!!!!!!!!!!!!!
nignag [31]

Answer:

I think its D but I'm not positive

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3 years ago
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