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3 years ago

Simplify the expression. Cosx cscx tanx

Mathematics

1 answer:

IgorLugansk [536]3 years ago

7 0

Answer:

Step-by-step explanation:

Using the trigonometric identities

csc x = $\frac{1}{sinx}$ and tan x = $\frac{sinx}{cosx}$

Given

cos x csc x tan x

= cos x × $\frac{1}{sinx}$ × $\frac{sinx}{cosx}$

Cancel sin x and cos x on numerator/ denominator

= 1

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What does the variable r represent in the equation 10r+4=8

Kryger [21]

Answer:

The value of variable r in the equation $10r+4=8$ is $\mathbf{r=0.4}$

Step-by-step explanation:

We need to find the value of variable r in the equation $10r+4=8$

Step 1: Write the equation

$10r+4=8$

Step 2: Subtract 4 on both sides

$10r+4-4=8-4\\10r=4$

Step 3: Divide both sides by 4

$\frac{10r}{10}=\frac{4}{10}\\r=0.4$

So, The value of variable r in the equation $10r+4=8$ is $\mathbf{r=0.4}$

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2 years ago

Is the square root of 1/4 a rational number

Mrrafil [7]

Yes the square root of 1/4 is a rational number

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3 years ago

How to calculate slope?

LUCKY_DIMON [66]

Answer:

Rise/run rise over run

Step-by-step explanation:

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2 years ago

Express the volume of the box as a<br>polynomial in the variable x

Whitepunk [10]

The volume of the box as a polynomial in the variable x is x(12 - 2x)(7 - 2x)

<h3>How to determine the volume?</h3>

The complete question is added as an attachment

From the attached image, we have:

Length = 12 - 2x

Width = 7 - 2x

Height = x

The volume is calculated as:

Volume = Length * Width * Height

Substitute the known values in the above equation

Volume = (12 - 2x) * (7 - 2x) * x

This gives

Volume = x(12 - 2x)(7 - 2x)

Hence, the volume of the box as a polynomial in the variable x is x(12 - 2x)(7 - 2x)