Explain are you multiply and divide integers?

Mathematics

1 answer:

lord [1]3 years ago

6 0

If you're asking if you can or cannot multiply integers, then yes you can

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Which of the following expression expressions is equivalent to cos3x/sinxcosx?

77julia77 [94]

Correct Option:
Option B

Solution:
The given expression is:

$\frac{cos(3x)}{sin(x)cos(x)}$

cos(3x) can be written as cos(2x +x). Expanding it, we get:

$cos(3x) = cos(2x+x) \\ \\ 
cos(3x) =cos(2x)sin(x)-sin(2x)cos(x)$

Using this value of cos(3x) in given equation, we get:

$\frac{cos(3x)}{sin(x)cos(x)} \\ \\ 
= \frac{cos(2x)sin(x)-sin(2x)cos(x)}{sin(x)cos(x)} \\ \\ 
= \frac{cos(2x)sin(x)}{sin(x)cos(x)}- \frac{sin(2x)cos(x)}{sin(x)cos(x)} \\ \\ 
= \frac{cos(2x)}{cos(x)} - \frac{sin(2x)}{sin(x)} \\ \\ 
=sec(x)cos(2x)-csc(x)sin(2x)$

8 0

3 years ago

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Answer quickly plz im gonna be in trouble<br> :(

Montano1993 [528]

Answer:

64=16(x)

x=4

Step-by-step explanation:

7 0

2 years ago

NEED ANSWER ASAP<br> MARKING BRAINLIEST

neonofarm [45]

Answer:

Step-by-step explanation:

Area of an equilateral triangle = $\frac{\sqrt{3}}{4} } a^{2}$

Sub in your value of 16ft

A = $\frac{\sqrt{3}}{4} } *16^{2}$

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2 years ago

How do you determine if 5x-7y=14 is a function?

Pavlova-9 [17]

One way is to graph it and do the vertical line test
it is not a function if we can draw a vertical line in the graph that passes through 2 points of the graph

if we graph this function, we see there is no place we can draw a vertical line and hit the line twice

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3 years ago

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Determine the area of the composite figure.

MaRussiya [10]

Answer:

$110\ in^2$