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3 years ago

Rotate the given triangle 90°

Mathematics

2 answers:

Ad libitum [116K]3 years ago

6 0

Answer:

Step-by-step explanation:

kati45 [8]3 years ago

4 0

9514 1404 393

Answer:

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

Step-by-step explanation:

The rotation matrix for 90° CCW is ...

$\left[\begin{array}{cc}0&-1\\1&0\end{array}\right]$

Then the rotated coordinates are ...

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

_____

The transformation of each ordered pair is ...

(x, y) ⇒ (-y, x)

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Step-by-step explanation:

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3 years ago

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sergejj [24]

Answer:

$f(x)=4\cos(2x)+3$

Step-by-step explanation:

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