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3 years ago

Find the value of the determinant. 4 8 10 4 0-1 3 - 2 4

Mathematics

1 answer:

VLD [36.1K]3 years ago

4 0

Answer:

- 240

Step-by-step explanation:

We have to find the value of the following determinant

$\left|\begin{array}{ccc}4&8&10\\4&0&-1\\3&-2&4\end{array}\right|$

Now, we know that the value of a general determinant $\left|\begin{array}{ccc}a&b&c\\d&e&f\\g&h&i\end{array}\right|$ is given by [a( ei - fh) + b(fg - di) + c(dh - eg)]

Therefore, the value of the given determinant is

= 4[0 × 4 - (-1)(-2)] + 8[3(-1) - 4 × 4] + 10[4(-2) - 3 × 0]

= - 8 - 152 - 80 = - 240 (Answer)

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Answer:

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Step-by-step explanation:

First let's write the generic equation of a line:

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Step-by-step explanation:

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3 years ago

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Andrew [12]

Answer:

A. (1, -2)

B. the lines intersect at the solution point: (1, -2).

Step-by-step explanation:

A. The equations can be solve by substitution by using the y-expression provided by one of them to substitute for y in the other.

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