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$A = [\begin{matrix} 5 & 1 \\ 1 & 1 \end{matrix}]$
$B = [\begin{matrix} 3 & 5 \\ 1 & 3 \end{matrix}]$
Similar or not similar?

Line 2021-02-03

Tell whether $5 x^{1 / 2} - 3 x^{3}$ is a polynomial.

nicekikah 2021-02-03

Which of the following statements are always true, with A and B are orthogonal matrices?
$1) det (A^{T} (A + B) B^{T}) = det (A^{T} + B^{T})$
$2) det (A^{- 1} + B^{T}) = det (A^{T} + B^{- 1})$
$3) det (A + B^{T}) = det (A^{T} + B)$

ka1leE 2021-02-03

Graph each polynomial function. $f (x) = 2 x^{3} - x^{2} + 2 x - 1$

Kye 2021-02-03

Detenninants of Sums Give an example of square matrices A and B for which $| A + B | \neq | A | + | B |$

rocedwrp 2021-02-03

Reasoning as in the given problem, what is the value of
$0.3 + 0.03 + 0.003 + . . . ?$
Working with series Consider the infinite series
$0.9 + 0.09 + 0.009 + 0.0009 + . . .,$
where each term of the sum is $\frac{1}{10}$ of the previous term.
a. Find the sum of the first one, two, three, and four terms of the series.
b. What value would you assign to the infinite series $0.9 + 0.09 + 0.009 +$ ⋅ ⋅ ⋅?

floymdiT 2021-02-03

Show that the product of two $2 \times 2$ skew symmetric matrices is diagonal. Is this true for $n \times n$ skew symmetric matrices with n > 2?

shadsiei 2021-02-02

The exponential expression $2^{8}$ has a value of 256. Write two other exponential expressions that have a value of 256. Explain how you got your answers. (Begin by writing out $2^{8}$ as the product of 2s.)

ediculeN 2021-02-02

Construct a vector that is orthogonal to 24i + 7j. You must have BOTH solutions.

Sinead Mcgee 2021-02-02

Solve the problem. Let vector u have initial point P1=(0,2) and terminal point P2=(−2,6). Let vector v have initial point Q1=(3,0) and terminal point Q2=(1,4). U and v have the same direction. Find ||u|| and ||v||. Is u=v?

Kye 2021-02-02

Given the matrices
$A = [\begin{matrix} - 1 & 3 \\ 2 & - 1 \\ 3 & 1 \end{matrix}] and B = [\begin{matrix} 0 & - 2 \\ 1 & 3 \\ 4 & - 3 \end{matrix}]$ find the $3 \times 2$ matrix X that is a solution of the equation. 8X+A=B

Ava-May Nelson 2021-02-02

If $A = (\begin{matrix} 8 & 0 \\ 4 & - 2 \\ 3 & 6 \end{matrix}) and B = (\begin{matrix} 2 & - 2 \\ 4 & 2 \\ - 5 & 1 \end{matrix})$ ,then find the matrix X such that $2 A + 3 X = 5 B$

abondantQ 2021-02-02

compute the indicated matrices (if possible). $D + B C$
Let $A = [\begin{matrix} 3 & 0 \\ - 1 & 5 \end{matrix}], B = [\begin{matrix} 4 & - 2 & 1 \\ 0 & 2 & 3 \end{matrix}], C = [\begin{matrix} 1 & 2 \\ 3 & 4 \\ 5 & 6 \end{matrix}], D = [\begin{matrix} 0 & - 3 \\ - 2 & 1 \end{matrix}], E = [\begin{matrix} 4 & 2 \end{matrix}], F = [\begin{matrix} - 1 \\ 2 \end{matrix}]$

shadsiei 2021-02-02

Solve the system of equations (Use matrices.):
$x - 2 y + z = 16$ ,
$2 x - y - z = 14$ ,
$3 x + 5 y - 4 z = - 10$

Cheyanne Leigh 2021-02-02

For the following Leslie matrix , find an approximate expression for the population distribution after n years , given that the initial population distribution is given by $X (0) = [\begin{matrix} 2000 \\ 4000 \end{matrix}], L^{n} = [\begin{matrix} 0.8 & 0.4 \\ 1.2 & 0 \end{matrix}]$
Select the correct choice below and fill in the answer boxes to complete your choise.
a) $X \approx () ()^{n} [\begin{matrix} 1 \\ () \end{matrix}]$
b) $X \approx ()^{n} [\begin{matrix} 1 \\ () \end{matrix}]$

Line 2021-02-02

Find the following matrices: a) $A + B .$
(b) $A - B .$
(c) -4A.
(d) $3 A + 2 B .$
$A = [\begin{matrix} 6 & 2 & - 3 \end{matrix}], B = [\begin{matrix} 4 & - 2 & 3 \end{matrix}]$

BolkowN 2021-02-01

Add the polynomials: $(t^{2} - 4 t + t^{4}) + (3 t^{4} + 2 t + 6)$

floymdiT 2021-02-01

$(- 5) \times \dots \times (- 5) 17 t i m e s$

Wierzycaz 2021-02-01

Suppose that the dunctions q and r are defined as follows.
$q (x) = x^{2} + 5$
$r (x) = \sqrt{x + 3}$
Find the following.
$q \circ r (1) = ?$
$(r \circ q) (1) = ?$

naivlingr 2021-01-31

Solve the system of given equations using matrices. Use Gaussian elimination with back-substitution or Gauss-Jordan elimination.
${\begin{cases} 3 a - b - 4 c = 3 \\ 2 a - b + 2 c = - 8 \\ a + 2 b - 3 c = 9 \end{cases}$

Precalculus problems and solutions are hard to find online even though this topic is quite popular among college students majoring in Engineering. Keeping this fact in mind, we decided to provide you with a list of questions and answers that will help you with various precalculus problems. Regardless if it is related to equations or any other problem, these precalculus problems and composite functions examples and solutions below will help you see the logic and compare solutions as you check your original task.

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