Precalculus Solutions | Expert Assistance for Problems & Examples

Multiply, please: (a-b)(a-b)

kerrum75 2021-12-18

Find all $2020 \times 2020$ matrices $X, Y$ with integer entries such that $X Y - Y X = I$

veksetz 2021-12-18

Find the product of the complex numbers
$z_{1} = 6 ({\cos 20}^{\circ} + i {\sin 20}^{\circ})$ and $z_{2} = 5 ({\cos 50}^{\circ} + i {\sin 50}^{\circ})$ . Leave answers in polar form.

Krzychau1 2021-12-18

Calculate the derivative of the following function
$f (x) - \ln \frac{(2 x - 1) {(x + 2)}^{3}}{{(1 - 4 x)}^{2}}$

Terrie Lang 2021-12-18

How to find a unit vectors are orthogonal to both i+j and i+k?

idiopatia0f 2021-12-18

Vector Dot Product Learning Goal: To understand the rules for computing dot products. Let vectors $A = (2, 1, - 4), B = (- 3, 0, 1)$
Dot product of the vectors A and B Calculate $A \cdot B$ . Express your answer numerically. $A \cdot B =$

regatamin2 2021-12-18

Part A
For the two vectors in the figure (Figure 1) , find the magnitude of the vector product $\overset{―}{A} \times \overset{―}{B}$ .
Part B
Find the direction of the vector product $\overset{―}{A} \times \overset{―}{B}$ .
Find the direction of the vector product .
Part C
Find the magnitude of $\overset{―}{A} \times \overset{―}{B}$ .
Part D
Find the direction of $\overset{―}{A} \times \overset{―}{B}$ .

lugreget9 2021-12-17

How do you find $f (g (- 3))$ given $f (x) = 2 x - 1$ and $g (x) = 3 x$ and $h (x) = x^{2} + 1$

Carol Valentine 2021-12-17

Dot product of two perpendicular vectors If $V_{1}$ and $V_{2}$ are perpendicular, calculate $V_{1} \cdot V_{2}$ . Express your answer in terms of $V_{1}$ and $V_{2}$ .
$V 1 \cdot V 2 =$

Painevg 2021-12-17

Dot product of a vector with itself Calculate $V_{1} \cdot V_{1}$ . Express your answer in terms of $V_{1}$ .
$V_{1} \cdot V_{1} =$

rocket is launched at an angle of 75 degrees, with a speed of 100 mph. Find the vertical speed of the rocket (vertical component).

f(x)=105√x3−√x7+63√x8−3f(x)=10x35−x7+6x83−3

An insurance policy sells for $600 based on past data an average of one and 50 policyholders go file a $10,000 claim an average of one and 250 policyholders will file A $30,000 claim an average of one and 400 policyholders will file an $80,000 claim find the expected value to the company per policy sold and if the company sells 10,000 policies what is the expected profit or loss

Cheexorgeny 2021-12-16

Vector Dot Product Learning Goal: To understand the rules for computing dot products. Let vectors $A = (2, 1, - 4), B = (- 3, 0, 1)$
Angle between the vectors A and B What is the angle $θ A B$ between A and B? Express your answer numerically to three significant figures in radians. $θ A B =$ radians

eozoischgc 2021-12-16

Find the unit vectors that are parallel to the tangent line to the curve $y = 2 \sin x$ at the point $(\frac{π}{6}, 1)$

Gregory Jones 2021-12-16

Derivative of cross-product of two vectors $\frac{d}{d t} [\vec{u (t)} \times \vec{v (t)}]$ , is it possible to find the cross-product of the two vectors first before differentiating?

Carole Yarbrough 2021-12-16

How do you find the unit vector in the direction of the given vector of $v = < 5, - 12 >$ ?

Marla Payton 2021-12-15

Vector Dot Product Learning Goal: To understand the rules for computing dot products. Let vectors $A (2, 1, 4), B = (- 3, 0, 1), C = (- 1, - 1, 2)$
Dot product of a vector and a scalar? Which of the following can be computed? Which of the following can be computed?
a) $\overset{―}{A} \cdot \overset{―}{B} \cdot \overset{―}{C}$
b) $\overset{―}{A} \cdot (B \cdot \overset{―}{C})$
c) $\overset{―}{A} \cdot (\overset{―}{B} + \overset{―}{C})$
d) $3 \overset{―}{A}$

Michael Maggard 2021-12-15

Vector Dot Product Learning Goal: To understand the rules for computing dot products. Let vectors $B = (- 3, 0, 1), C = (- 1, - 1, 2)$
Dot product of two vectors multiplied by constants Calculate $2 \overset{―}{B} \cdot 3 \overset{―}{C}$ . Express your answer numerically. $2 \overset{―}{B} \cdot 3 \overset{―}{C} =$

zgribestika 2021-12-15

Can vectors be inverted in this question?
Enquire if it is possible to solve the below for C.
$B^{- 1} (x - μ) = x c$
Here obviously B is an invertible matrix and both c and μ are column vectors.
Would the solution be $x^{- 1} B^{- 1} (x - μ) = c$ is it possible to invert vectors ?
How about if it was the other way
$B^{- 1} (x - μ) = c x$
Is there any other way to do this ?

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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