2 years ago

2.0 Is 10 times as much as

Mathematics

1 answer:

STALIN [3.7K]2 years ago

4 0

Answer:

0.2

Step-by-step explanation:

2/10=0.2

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Find the integration of (1-cos2x)/(1+cos2x)

slega [8]

Given:

The expression is:

$\dfrac{1-\cos 2x}{1+\cos 2x}$

To find:

The integration of the given expression.

Solution:

We need to find the integration of $\dfrac{1-\cos 2x}{1+\cos 2x}$ .

Let us consider,

$I=\int \dfrac{1-\cos 2x}{1+\cos 2x}dx$

$I=\int \dfrac{2\sin^2x}{2\cos^2x}dx$ $[\because 1+\cos 2x=2\cos^2x,1-\cos 2x=2\sin^2x]$

$I=\int \dfrac{\sin^2x}{\cos^2x}dx$

$I=\int \tan^2xdx$ $\left[\because \tan \theta =\dfrac{\sin \theta}{\cos \theta}\right]$

It can be written as:

$I=\int (\sec^2x-1)dx$ $[\because 1+\tan^2 \theta =\sec^2 \theta]$

$I=\int \sec^2xdx-\int 1dx$

$I=\tan x-x+C$

Therefore, the integration of $\dfrac{1-\cos 2x}{1+\cos 2x}$ is $I=\tan x-x+C$ .

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3 years ago

The cost of a jacket increased from $65.00 to $74.10. What is the percentage increase of the cost of the jacket?

Andreas93 [3]

Answer:

14%

Step-by-step explanation:

14% of 65 is 9.1. so 65+9.1= 74.10

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3 years ago

Which of the following are solutions to the inequality, 16 < 15 x − 12 ? Select all that apply.

aalyn [17]

Answer:

25/7, 1.87, 3.25, and 22/7

Step-by-step explanation:

16 < 15x - 12

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+12. +12

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28 < 15x

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÷15 ÷15

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28/15 < x

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x > 28/15

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this is true for any number greater than 1 and 13/15 = 1.8666......

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3 years ago

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Can someone help me?

Lapatulllka [165]

Answer:

idk

Step-by-step explanation:

we are nt on that yet

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Question 1: Are the following two monomials multiplied correctly? Yes or no

Anastaziya [24]

The answer is yes. I think that I’m right

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