Mathematics: Is very much ! i have no idea if it s true for all values or not.

Away from lift off 3 seconds . meaning explanation has to start off with proper vocabulary to identify what is being explained....

Is very much ! i have no idea if it s true for all

jeisleen6808

12.01.2022

It's only valid when the product of m and n is zero, that is when n=0 or m=0

Step-by-step explanation:

Square roots

Taking the square root of a real number m (non-negative) means to find another number x, such that

m=x^2

When we find square roots in algebraic expressions and we need to get rid of them, we take the 2nd power of the roots to eliminate them

We have to test if

$\sqrt{m+n}=\sqrt{m}+\sqrt{n}$

for all values of m and n

To find an answer, we take the second power in both sides:

$\left ( \sqrt{m+n} \right )^2=\left ( \sqrt{m}+\sqrt{n} \right )^2$

Expanding

$m+n=m+2\sqrt{mn}+n$

Simplifying

$2\sqrt{mn}=0$

Operating

mn=0

The original expression is only valid when the product of m and n is zero, that is when n=0 or m=0

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