Precalculus Solutions | Expert Assistance for Problems & Examples

In your earlier work in algebra, you learned how to recognize linear, exponential, and quadratic functions by the form of their symbolic rules. Geometric transformations also can be recognized by their symbolic rules. What transformation is defined by each of the following coordinate rules? $a . (x, y) \to (5 y, 5 x) b . (x, y) \to (- \frac{1}{2} x, - \frac{1}{2} y) c . (x, y) \to (4 x - 12, 4 y + 8)$

Joni Kenny 2021-08-13

Justify if the series is convergent:
$\sum_{n = 1}^{\infty} e^{- n}$

Amari Flowers 2021-08-13

Consider two series $\sum_{n = 1}^{\infty} \frac{1}{2} π n Z and \sum_{n = 0}^{\infty} \frac{1}{π^{2}} n$ . Which of them converges?

ossidianaZ 2021-08-13

Two sides and an angle of a triangle are given. Help to determine whether the given measurements produce triangle, two triangles, or no triangle. Round to the nearest tenth and the nearest degree for sides and angles.
$a = 6.1, b = 4, A = 162 °$

glamrockqueen7 2021-08-13

If $0 \leq θ < 2 π$ and $1 - 7 \cos θ = 8$ , determine the values of $θ$

Jason Farmer 2021-08-13

Simplify the trigonometric identity. There should be no division signs in the answer.
$\frac{\cos θ + 1}{1 + \sec θ}$

EunoR 2021-08-13

Use the following conditions to find the exact value of $\tan (α - β)$
$\sin α = \frac{4}{5}, \frac{π}{2} < α < π$
$\cos β = \frac{5}{13}, 0 < β < \frac{π}{2}$

Tazmin Horton 2021-08-13

Find the exact value of the expression $\tan [\cos^{- 1} (- \frac{\sqrt{3}}{2})]$ Do not use a calculator.

rocedwrp 2021-08-13

If $\sec θ + \tan θ = x$ , obtain the values of $\sec θ, \tan θ$ and $\sin θ$ .

Anonym 2021-08-13

USe the trigonometric identites that we went over in class to write the following trigonometric expression in its most reduced form
$\cos^{2} (5 x)$

geduiwelh 2021-08-13

Rewrite the expression as a sum or difference before simplifying it.
$8 \sin 7 x \cos 4 x$

geduiwelh 2021-08-13

Use the Cofunction Theorem to fill in the blank so that the expression becomes a true statement.
$\sec y = \csc$

naivlingr 2021-08-13

Find the radian measure of the central angle of a circle of radius r that intercepts an arc of length s. r = 14 feet, s = 8 feet.

facas9 2021-08-13

Find exact value of $\cos (\frac{9 π}{4})$
How do you get $(\frac{π}{4} + 2 π)$

DofotheroU 2021-08-12

Prove
$\sec θ + \frac{1}{\tan (θ)} = \frac{\tan (θ)}{\sec (θ)} - 1$

Tolnaio 2021-08-12

Determine two values of x between $0^{\circ}$ and $360^{\circ}$ that have $\sin x = \frac{- \sqrt{3}}{2}$

Daniaal Sanchez 2021-08-12

Find ${[2 ({\cos 30}^{\circ} + i {\sin 30}^{\circ})]}^{5}$ . Write the answer in rectangular form.

ediculeN 2021-08-12

Find each angle measure to the nearest degree. You must use the 2nd key when looking for inverses.
$\cos W = 0.7771$

SchachtN 2021-08-12

Copy and complete the anticipation guide in your notes. StatementThe quadratic formula can only be used when solving a quadratic equation.Cubic equations always have three real roots.The graph of a cubic function always passes through all four quadrants.The graphs of all polynomial functions must pass through at least two quadrants.The expression $x^{2} > 4$ is only true if x>2.If you know the instantaneous rates of change for a function at x = 2 and x = 3, you can predict fairly well what the function looks like in between.
Agree Disagree Justification
Statement
The quadratic formula can only be used when solving a quadratic equation. Cubic equations always have three real roots. The graph of a cubic function always passes through all four quadrants. The graphs of all polynomial functions must pass through at least two quadrants.
The expression $x^{2} > 4$ is only true if x>2. If you know the instantaneous rates of change for a function at x = 2 and x = 3, you can predict fairly well what the function looks like in between.

bobbie71G 2021-08-12

Describe the transformations that were applied to $y = x^{4}$ to get each of the following functions.

$a) y = - 25 {(3 (x + 4))}^{4} - 60$

$b) y = 8 {(\frac{3}{4} x)}^{4} + 43$

$c) y = {(- 13 x + 26)}^{4} + 13$

$d) y = \frac{8}{11} {(- x)}^{4} - 1$

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.

Precalculus

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