9514 1404 393
Answer:
see below
Step-by-step explanation:
When the intercepts are given, plot those and draw a line through them.
_____
<em>Additional comment</em>
The equation shown with the graph is the equation of a line in "intercept form." It is especially useful in a case like this where the intercepts are given.
Answer:
12
Step-by-step explanation: we will use pathogorean theorem because there is a right triangle. a^2+b^2=c^2
We know BE=9 we need AE to find AB
You can make another triangle on the end. AD=28 - 12 (BC) = 16
16/2 = 8 so AE= 8
8^2+9^2=c^2
145=c^2
Square root of 145=c
C=12.04
Step-by-step explanation:
<u>Our expression;</u>
<u />![(9w^2+7w-2)+(8w^2-8w-7)-(-5w^2+5w+4)](https://tex.z-dn.net/?f=%289w%5E2%2B7w-2%29%2B%288w%5E2-8w-7%29-%28-5w%5E2%2B5w%2B4%29)
<u>Also represented as after using the distributive property;</u>
<u />![9w^2+7w-2+8w^2-8w-7+5w^2-5w-4](https://tex.z-dn.net/?f=9w%5E2%2B7w-2%2B8w%5E2-8w-7%2B5w%5E2-5w-4)
<u>Simplify;</u>
<u />![9w^2+7w-2+8w^2-8w-7+5w^2-5w-4](https://tex.z-dn.net/?f=9w%5E2%2B7w-2%2B8w%5E2-8w-7%2B5w%5E2-5w-4)
![22w^2+7w-2-8w-7-5w-4](https://tex.z-dn.net/?f=22w%5E2%2B7w-2-8w-7-5w-4)
![22w^2-6w-2-7-4](https://tex.z-dn.net/?f=22w%5E2-6w-2-7-4)
![22w^2-6w-13](https://tex.z-dn.net/?f=22w%5E2-6w-13)
Let integers be x, x+1, x+2 and x+3
x < 0.5(x + 3)
x < 0.5x + 1.5
0.5x < 1.5
x < 3
so x = 2 given that they are positive integers
so the largest integer that could be in the set is 2 + 3 = 5 answer
Answer:
(b) ![\displaystyle \int {\frac{\sec x \tan x}{1 + \sec^2 x}} \, dx = \arctan \big( \sec x \big) + C](https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5Cint%20%7B%5Cfrac%7B%5Csec%20x%20%5Ctan%20x%7D%7B1%20%2B%20%5Csec%5E2%20x%7D%7D%20%5C%2C%20dx%20%3D%20%5Carctan%20%5Cbig%28%20%5Csec%20x%20%5Cbig%29%20%2B%20C)
General Formulas and Concepts:
<u>Calculus</u>
Differentiation
- Derivatives
- Derivative Notation
Integration
Integration Method: U-Substitution and U-Solve
Step-by-step explanation:
<u>Step 1: Define</u>
<em>Identify given.</em>
<em />![\displaystyle \int {\frac{\sec x \tan x}{1 + \sec^2 x}} \, dx](https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5Cint%20%7B%5Cfrac%7B%5Csec%20x%20%5Ctan%20x%7D%7B1%20%2B%20%5Csec%5E2%20x%7D%7D%20%5C%2C%20dx)
<u>Step 2: Integrate Pt. 1</u>
<em>Identify variables for u-substitution.</em>
- Set <em>u</em>:
![\displaystyle u = \sec x](https://tex.z-dn.net/?f=%5Cdisplaystyle%20u%20%3D%20%5Csec%20x)
- [<em>u</em>] Apply Trigonometric Differentiation:
![\displaystyle du = \sec x \tan x \ dx](https://tex.z-dn.net/?f=%5Cdisplaystyle%20du%20%3D%20%5Csec%20x%20%5Ctan%20x%20%5C%20dx)
- [<em>du</em>] Rewrite [U-Solve]:
![\displaystyle dx = \cos x \cot x \ du](https://tex.z-dn.net/?f=%5Cdisplaystyle%20dx%20%3D%20%5Ccos%20x%20%5Ccot%20x%20%5C%20du)
<u>Step 3: Integrate Pt. 2</u>
- [Integral] Apply Integration Method [U-Solve]:
![\displaystyle \begin{aligned}\int {\frac{\sec x \tan x}{1 + \sec^2 x}} \, dx & = \int {\frac{\sec x \tan x \cos x \cot x}{u^2 + 1}} \, du \leftarrow \\\end{aligned}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5Cbegin%7Baligned%7D%5Cint%20%7B%5Cfrac%7B%5Csec%20x%20%5Ctan%20x%7D%7B1%20%2B%20%5Csec%5E2%20x%7D%7D%20%5C%2C%20dx%20%26%20%3D%20%5Cint%20%7B%5Cfrac%7B%5Csec%20x%20%5Ctan%20x%20%5Ccos%20x%20%5Ccot%20x%7D%7Bu%5E2%20%2B%201%7D%7D%20%5C%2C%20du%20%5Cleftarrow%20%5C%5C%5Cend%7Baligned%7D)
- [Integrand] Simplify:
![\displaystyle \begin{aligned}\int {\frac{\sec x \tan x}{1 + \sec^2 x}} \, dx & = \int {\frac{\sec x \tan x \cos x \cot x}{u^2 + 1}} \, du \\& = \int {\frac{1}{u^2 + 1}} \, du \leftarrow \\\end{aligned}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5Cbegin%7Baligned%7D%5Cint%20%7B%5Cfrac%7B%5Csec%20x%20%5Ctan%20x%7D%7B1%20%2B%20%5Csec%5E2%20x%7D%7D%20%5C%2C%20dx%20%26%20%3D%20%5Cint%20%7B%5Cfrac%7B%5Csec%20x%20%5Ctan%20x%20%5Ccos%20x%20%5Ccot%20x%7D%7Bu%5E2%20%2B%201%7D%7D%20%5C%2C%20du%20%5C%5C%26%20%3D%20%5Cint%20%7B%5Cfrac%7B1%7D%7Bu%5E2%20%2B%201%7D%7D%20%5C%2C%20du%20%5Cleftarrow%20%5C%5C%5Cend%7Baligned%7D)
- [Integral] Apply Arctrigonemtric Integration:
![\displaystyle \begin{aligned}\int {\frac{\sec x \tan x}{1 + \sec^2 x}} \, dx & = \int {\frac{\sec x \tan x \cos x \cot x}{u^2 + 1}} \, du \\& = \int {\frac{1}{u^2 + 1}} \, du \\& = \frac{1}{1} \arctan \bigg( \frac{u}{1} \bigg) + C \leftarrow \\\end{aligned}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5Cbegin%7Baligned%7D%5Cint%20%7B%5Cfrac%7B%5Csec%20x%20%5Ctan%20x%7D%7B1%20%2B%20%5Csec%5E2%20x%7D%7D%20%5C%2C%20dx%20%26%20%3D%20%5Cint%20%7B%5Cfrac%7B%5Csec%20x%20%5Ctan%20x%20%5Ccos%20x%20%5Ccot%20x%7D%7Bu%5E2%20%2B%201%7D%7D%20%5C%2C%20du%20%5C%5C%26%20%3D%20%5Cint%20%7B%5Cfrac%7B1%7D%7Bu%5E2%20%2B%201%7D%7D%20%5C%2C%20du%20%5C%5C%26%20%3D%20%5Cfrac%7B1%7D%7B1%7D%20%5Carctan%20%5Cbigg%28%20%5Cfrac%7Bu%7D%7B1%7D%20%5Cbigg%29%20%2B%20C%20%5Cleftarrow%20%5C%5C%5Cend%7Baligned%7D)
- Simplify:
![\displaystyle \begin{aligned}\int {\frac{\sec x \tan x}{1 + \sec^2 x}} \, dx & = \int {\frac{\sec x \tan x \cos x \cot x}{u^2 + 1}} \, du \\& = \int {\frac{1}{u^2 + 1}} \, du \\& = \frac{1}{1} \arctan \bigg( \frac{u}{1} \bigg) + C \\& = \arctan u + C \leftarrow \\\end{aligned}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5Cbegin%7Baligned%7D%5Cint%20%7B%5Cfrac%7B%5Csec%20x%20%5Ctan%20x%7D%7B1%20%2B%20%5Csec%5E2%20x%7D%7D%20%5C%2C%20dx%20%26%20%3D%20%5Cint%20%7B%5Cfrac%7B%5Csec%20x%20%5Ctan%20x%20%5Ccos%20x%20%5Ccot%20x%7D%7Bu%5E2%20%2B%201%7D%7D%20%5C%2C%20du%20%5C%5C%26%20%3D%20%5Cint%20%7B%5Cfrac%7B1%7D%7Bu%5E2%20%2B%201%7D%7D%20%5C%2C%20du%20%5C%5C%26%20%3D%20%5Cfrac%7B1%7D%7B1%7D%20%5Carctan%20%5Cbigg%28%20%5Cfrac%7Bu%7D%7B1%7D%20%5Cbigg%29%20%2B%20C%20%5C%5C%26%20%3D%20%5Carctan%20u%20%2B%20C%20%5Cleftarrow%20%5C%5C%5Cend%7Baligned%7D)
- [<em>u</em>] Back-substitute:
![\displaystyle \begin{aligned}\int {\frac{\sec x \tan x}{1 + \sec^2 x}} \, dx & = \int {\frac{\sec x \tan x \cos x \cot x}{u^2 + 1}} \, du \\& = \int {\frac{1}{u^2 + 1}} \, du \\& = \frac{1}{1} \arctan \bigg( \frac{u}{1} \bigg) + C \\& = \arctan u + C \\& = \boxed{ \arctan \big( \sec x \big) + C } \\\end{aligned}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5Cbegin%7Baligned%7D%5Cint%20%7B%5Cfrac%7B%5Csec%20x%20%5Ctan%20x%7D%7B1%20%2B%20%5Csec%5E2%20x%7D%7D%20%5C%2C%20dx%20%26%20%3D%20%5Cint%20%7B%5Cfrac%7B%5Csec%20x%20%5Ctan%20x%20%5Ccos%20x%20%5Ccot%20x%7D%7Bu%5E2%20%2B%201%7D%7D%20%5C%2C%20du%20%5C%5C%26%20%3D%20%5Cint%20%7B%5Cfrac%7B1%7D%7Bu%5E2%20%2B%201%7D%7D%20%5C%2C%20du%20%5C%5C%26%20%3D%20%5Cfrac%7B1%7D%7B1%7D%20%5Carctan%20%5Cbigg%28%20%5Cfrac%7Bu%7D%7B1%7D%20%5Cbigg%29%20%2B%20C%20%5C%5C%26%20%3D%20%5Carctan%20u%20%2B%20C%20%5C%5C%26%20%3D%20%5Cboxed%7B%20%5Carctan%20%5Cbig%28%20%5Csec%20x%20%5Cbig%29%20%2B%20C%20%7D%20%5C%5C%5Cend%7Baligned%7D)
∴ we used substitution to <em>find</em> the indefinite integral.
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Learn more about integration: brainly.com/question/27746468
Learn more about Calculus: brainly.com/question/27746481
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Topic: AP Calculus AB/BC (Calculus I/I + II)
Unit: Integration