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Alex17521 [72]
3 years ago
6

Write an expression for the vector difference a⃗ −b⃗ using unit vectors.

Mathematics
1 answer:
wel3 years ago
5 0
A vector A with components a, b, c can be written as (a, b, c) or in terms of unit vectors as ai + bj + ck. The letters i, j, k are the standard symbols for the unit vectors in the x, y and z directions. 

<span>So if A = (3, 4, 5), you can also write A = 3i + 4j + 5k </span>
<span>If B = (1, 1, 1), you can write B = i + j + k </span>
<span>And then A - B is the vector whose components are the differences in each component: A - B = (3 - 1)i + (4 - 1)j + (5 - 1)k = 2i + 3j + 4k </span>

<span>So you need to know what the components of A and B are to answer this.</span>
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dezoksy [38]

Answer: The slope is -2/1

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Note: When we go down or to the left its negative, when we go up or to the right its positive

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Answer:

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Step-by-step explanation:

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Stella [2.4K]

Answer:

\boxed{\textsf {The given polynomial is a quadratic polynomial. }}

Step-by-step explanation:

A polynomial is given to us and we need to make the polynomial by its degree . Here the given polynomial is 3x² + 5x -3 .

\sf\implies p(x)= 3x^2+5x-3

So here we can see that the highest power of the variable in the given polynomial is 2 . So the polynomial is a quadratic polynomial .

<u>★</u><u> </u><u>More </u><u>to </u><u>Know </u><u>:</u><u>-</u>

When we equate this quadratic polynomial with 0 , it becomes a quadratic equation.

That is ,

\sf\implies p(x)= 3x^2+5x-3=0

This is done in order to find the zeroes of the polynomial. The zeroes of the polynomial are the values for which the polynomial becomes 0 .

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