Recent questions in Precalculus

PrecalculusAnswered question

i6ch5i6ns3op3 2023-02-25

Seventy eight and two hundred seventeen thousandths can be written as:

A) 78.217

B) 78.201

C) 7.217

D) 78.217

A) 78.217

B) 78.201

C) 7.217

D) 78.217

PrecalculusAnswered question

Phoebe Ware 2023-02-25

How to prove $\mathrm{cos}\left(\frac{2\pi}{3}\right)$?

PrecalculusAnswered question

nestalno4szl 2023-02-25

How to show that the point (7/25, 24/25) is on the unit circle?

PrecalculusAnswered question

mfausantosngcl 2023-02-24

Write the complex number $8(\mathrm{cos}30+i\mathrm{sin}30)$ in standard form?

PrecalculusAnswered question

laminarskq2p 2023-02-24

The measure of an angle is five times its complement. The angle measures

(a) ${25}^{\circ}$

b) ${35}^{\circ}$

c) ${65}^{\circ}$

d) ${75}^{\circ}$

(a) ${25}^{\circ}$

b) ${35}^{\circ}$

c) ${65}^{\circ}$

d) ${75}^{\circ}$

PrecalculusAnswered question

Damion Ellis 2023-02-23

The number of solutions of $\mathrm{cos}\left(2\theta \right)=\mathrm{sin}\left(\theta \right)$ in $\left(0,2\pi \right)$ is...

PrecalculusAnswered question

compatidakjjn 2023-02-23

When light enters from air to glass the angle of incidence and refraction in air and glass are 45° and 30° respectively. Find the refractive index of glass.

PrecalculusAnswered question

ddioddefn5cw 2023-02-22

${P}_{1}(x)=3{x}^{2}+10x+8\phantom{\rule{0ex}{0ex}}{P}_{2}(x)={x}^{3}+{x}^{2}+2x+t$

are two polynomials.

When one of the factors of ${P}_{1}(x)$ divides ${P}_{2}(x)$, 2 is the remainder obtained.

That factor is also a factor of the polynomial ${P}_{3}(x)=2(x+2)$

Find the value of ‘t’.

are two polynomials.

When one of the factors of ${P}_{1}(x)$ divides ${P}_{2}(x)$, 2 is the remainder obtained.

That factor is also a factor of the polynomial ${P}_{3}(x)=2(x+2)$

Find the value of ‘t’.

PrecalculusAnswered question

Tyrell Singleton 2023-02-22

The value of the expression $({\mathrm{tan}}^{4}x+2{\mathrm{tan}}^{2}x+1){\mathrm{cos}}^{2}x$
, when $x=\frac{\pi}{12}$ is equal to

$A)4(2-\sqrt{3});\phantom{\rule{0ex}{0ex}}B)4(\sqrt{2}+1);\phantom{\rule{0ex}{0ex}}C)16{\mathrm{cos}}^{2}\frac{\pi}{12};\phantom{\rule{0ex}{0ex}}D)16{\mathrm{sin}}^{2}\frac{\pi}{12}$

$A)4(2-\sqrt{3});\phantom{\rule{0ex}{0ex}}B)4(\sqrt{2}+1);\phantom{\rule{0ex}{0ex}}C)16{\mathrm{cos}}^{2}\frac{\pi}{12};\phantom{\rule{0ex}{0ex}}D)16{\mathrm{sin}}^{2}\frac{\pi}{12}$

PrecalculusAnswered question

Admiddevadxvi 2023-02-21

Let $\overrightarrow{A}$ be vector parallel to line of intersection of planes ${P}_{1}$ and ${P}_{2}$ through origin. ${P}_{1}$ is parallel to the vectors $2\hat{j}+3\hat{k}$ and $4\hat{j}-3\hat{k}$ and ${P}_{2}$ is parallel to $\hat{j}-\hat{k}$ and $3\hat{i}+3\hat{j}$ then the angle between vector $\overrightarrow{A}$ and $2\overrightarrow{i}+\overrightarrow{j}-2\hat{k}$

PrecalculusAnswered question

Ravottidsvx 2023-02-21

The possibility of something happening or not happening is called probability. True or False

PrecalculusAnswered question

elynnea4xl 2023-02-21

What are the inflections points of $y={e}^{2x}-{e}^{x}$?

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.