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3 years ago

Could someone help me? Why does x^4 * x^-4 = 1?

Mathematics

2 answers:

Alika [10]3 years ago

7 0

Answer:

Step-by-step explanation:

when you have a negative exponent, you are going to have a fraction. Example: 2^4 * 2^-4= 2^4 is 16 2^-4 is 1/16.

You get the 16 but because it was a negative exponent, the 16 goes on the bottom. 16 as a fraction is 16/1.

When you multiply 16/1 and 1/16. It comes up to 16/16 or 1.

Does this help?

Advocard [28]3 years ago

3 0

Answer:

below

Step-by-step explanation:

We can use the product rule of exponents to solve [ x^y * x^z = x^y+z ].

x^4 * x^-4 = 1

x^4+(-4) = 1

x^0 = 1

1 = 1

Best of Luck!

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Supplementary means 180

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Answer:

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Step-by-step explanation:

First, substitute the equation into the quadratic formula.

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3 years ago

Select all the simplified expression <br>

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Answer:

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Step-by-step explanation:

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3 years ago

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10. Determine whether or not, vectors ui(1,-2, 0, 3), u2 = (2, 3,0,-1), u3 = (3,9,-4,-2) e R is a linear combination of the (2,-

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If (2, -1, 2, 1) is a linear combination of the three given vectors, then there should exist $c_1,c_2,c_3$ such that

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or equivalently, there should exist a solution to the system

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so that in the second equation,

$-2c_1+3c_2=\dfrac72\implies7c_1=\dfrac72\implies c_1=\dfrac12$

which in turn gives

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4 years ago

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Answer:

See below.

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