Precalculus Solutions | Expert Assistance for Problems & Examples

Find the range of $f (x) = 11 \cos^{2} x + 3 \sin^{2} x + 6 \sin x \cos x + 5$
I have simplified this problem to
$f (x) = 8 \cos^{2} x + 6 \sin x \cos x + 8$
and tried working with $g (x) = 8 \cos^{2} x + 6 \sin x \cos x$

Rosa Townsend 2022-04-05

Find the $θ$ of $\frac{a}{\cos θ} + \frac{b}{\sin θ} = c$

Bryant Jacobs 2022-04-05

Find the product $\sec x \cdot \csc x$
To be $\frac{π}{2} < x < π$ . If
$\tan^{2} x + \cot^{2} x + 4 \tan x + 4 \cot x - 10 = 0$
find the product $\sec x \cdot \csc x$

jisu61hbke 2022-04-05

Find all solutions of the equation in the interval $[0, 2 π)$ (express your answer in terms of k, where k is any integer).
$\cos 2 θ + 7 \cos θ = 8$

Jaylin Clements 2022-04-05

Find a formula for $\sin (5 x)$ in terms of $\sin (x)$ and $\cos (X)$ .

nomadzkia0re 2022-04-05

Exact value $\sin (160^{\circ}) \sin (140^{\circ}) \sin (110^{\circ})$

Harold Hoover 2022-04-05

Evaluating $lim_{x \to 0} \frac{x}{\sin (\frac{1}{x^{2}})}$

rhedynogh0rp 2022-04-05

Evaluating $\sin (\arccos \frac{1}{2} + \arccos \frac{7}{25})$

Adolfo Hebert 2022-04-05

Evaluate:
$f (x) = (\cos x - \sin x) (17 \cos x - 7 \sin x)$

Marzadri9lyy 2022-04-05

Evaluate without using a calculator:
$\tan (2 \sin^{- 1} (\frac{\sqrt{5}}{5}))$

Pasegeabe85xy 2022-04-05

Evaluate the definite integral:
$\int_{\frac{π}{8}}^{\frac{π}{4}} (\csc (2 θ) - \cot (2 θ) d θ$

Sage Fry 2022-04-05

Evaluate $lim_{y \to 0} \frac{(x + y) \sec (x + y) - x \sec x}{y}$

nomadzkia0re 2022-04-05

Evaluate
$\int_{- \frac{1}{\sqrt{3}}}^{\frac{1}{\sqrt{3}}} \frac{x^{4}}{1 - x^{4}} \cos^{- 1} \frac{2 x}{1 + x^{2}} d x$

Rex Maxwell 2022-04-05

Evaluate
$A = \int_{- 1}^{+ 1} x^{2} - \frac{2}{x^{2} + 1} d x$

navantegipowh 2022-04-05

Evaluate for any integer, n
$\int_{- \frac{1}{2}}^{\frac{1}{2}} \frac{\sin^{4} (n π x)}{\sin^{2} (π x)}$

Kendall Daniels 2022-04-05

Domain of $g (x) = \frac{\cos^{2} x - \sin^{2} x}{1 - \tan x}$ in $R$ ?
In $R$ what is the domain of the function below?
$g (x) = \frac{\cos^{2} x - \sin^{2} x}{1 - \tan x}$
I added two conditions:
$D_{g} = {x \in R : 1 - \tan x \neq 0 \land x \neq \frac{π}{2} + k π, k \in Z}$
This gives me:
$R {x : x = \frac{π}{4} + k π \land x = \frac{π}{2} + k π, k \in Z}$
The solution is only:
$R {x : x = \frac{π}{4} + k π, k \in Z}$

Deshawn Cabrera 2022-04-05

Find all rational roots of the polynomial $x^{4} + x^{3} - 4 x^{2} + x + 1$

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