periodicidade cos^3(t)

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`x`²	`x`^□	log_□	√☐	^□√☐	≤	≥	□□	·	÷	`x`^◦	π
(☐)^′	`ddx`	∂∂`x`	∫	∫_□^□	lim	∑	∞	`θ`	(`f` ◦ `g`)	`f`(`x`)

☐²

x^☐

√☐

^□√☐

□□

log_□

θ

∞

∫

ddx

≥	≤	·	÷	`x`^◦	(☐)	\|☐\|	(`f` ◦ `g`)	`f`(`x`)	ln	`e`^☐
(☐)^′	∂∂`x`	∫_□^□	lim	∑	sin	cos	tan	cot	csc	sec

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projeção escalar (

−4

−1

), (

)

Solution

−22√2121

Decimal

−4.80079…

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Solution steps

One step at a time

(

3	1	1
1	3	−1
2	4	1

)

Matrix eigenvalues

Let A be a square matrix, η a vector and λ a scalar that satisfy Aη=λη,
then λ is called the eigenvalue associated with the eigenvector η of A

The eigenvalues of A are the roots of the characteristic equation det(A−λ I)=0

det((

3	1	1
1	3	−1
2	4	1

)−λ(

1	0	0
0	1	0
0	0	1

)): −λ³+7λ²−16λ+16

Solve −λ³+7λ²−16λ+16=0: λ=4, λ=32 +i√72 , λ=32 −i√72

The eigenvalues are:

λ=4, λ=32 +i√72 , λ=32 −i√72

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−▭▭	<	7	8	9	÷	`AC`
+▭▭	>	4	5	6	×	☐☐☐
×▭▭	(	1	2	3	−	`x`
▭ \|▭	)	.	0	=	+	`y`

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periodicidade cos^3(t)

Solution

Solution steps

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