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Art [367]
3 years ago
7

plzplzplz helllllllllllppppppppppppppppppppppppppppp mmmmmmmmmmmeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

eeeee please
Mathematics
2 answers:
tankabanditka [31]3 years ago
5 0

Answer:

what do you need help with

Soloha48 [4]3 years ago
4 0
With what? i don’t see a picture
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Find all the solutions of the given equations in the interval [0,2pi) tan^3x=tanx and cos 3x=-cos3x
slamgirl [31]
\tan^3x=\tan x
\tan^3x-\tan x=0
\tan x(\tan^2x-1)=0
\tan x(\tan x-1)(\tan x+1)=0
\begin{cases}\tan x=0\\\tan x-1=0\\\tan x+1=0\end{cases}

\tan x=\dfrac{\sin x}{\cos x}=0\implies \sin x=0\implies x=0,\pi

\tan x-1=0\iff\tan x=1\implies x=\dfrac\pi4,\dfrac{5\pi}4

\tan x+1=0\iff\tan x=-1\implies x=\dfrac{3\pi}4,\dfrac{7\pi}4

- - -

\cos3x=-\cos3x
2\cos3x=0
\cos3x=0\implies 3x=\dfrac\pi2,3x=\dfrac{3\pi}2\implies x=\dfrac\pi6,x=\dfrac\pi2

This doesn't account for all the solutions, however; there are some values of x that push 3x outside the interval [0,2\pi), so let's take a few more:

3x=\dfrac{5\pi}2\implies x=\dfrac{5\pi}6
3x=\dfrac{7\pi}2\implies x=\dfrac{7\pi}6
3x=\dfrac{9\pi}2\implies x=\dfrac{9\pi}6
3x=\dfrac{11\pi}2\implies x=\dfrac{11\pi}6

We can stop there, since the next candidate gives

3x=\dfrac{13\pi}2\implies x=\dfrac{13\pi}6>2\pi
7 0
3 years ago
BRAINLIEST PLEASE HELP <3
Pie

Answer:

10(2x22) is not an example of distributive property. That would equal 10x44 not 12x22

6 0
3 years ago
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Solve for x (28 POINTS)
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P + S = 180

105 + x+65=180

x=10
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3 years ago
Jason has 60 toy cars 30% of the cars are blue how many cars are blue?<br><br> Please Show Work!!
Temka [501]

Answer:

18

Step-by-step explanation:

30%=.3

60*.3=18

30% of 60 =18

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3 years ago
Solve this simultaneous equation by method of elimination
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Answer:

y

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3 years ago
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