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Over [174]
3 years ago
9

4x+12 8x- 4(x+3) 412x+y)

Mathematics
1 answer:
Bumek [7]3 years ago
7 0

Answer:

−1648x2−4812x+y

Step-by-step explanation:

4x+128x−4(x+3)(412)x+y

=−1648x2−4812x+y

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Step-by-step explanation:

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3 years ago
How am I supposed to figure this out if csc Theta(0) has a radical number on the top?
Harman [31]
\bf csc(\theta)=\cfrac{hypotenuse}{opposite}\implies csc(\theta)=\cfrac{\sqrt{7}}{2}\cfrac{\leftarrow hypotenuse=c}{\leftarrow opposite=b}\\\\
-----------------------------\\\\
\textit{so hmm using the pythagorean theorem, we can say that}\\\\
c^2=a^2+b^2\implies \pm \sqrt{c^2-b^2}=a\qquad 
\begin{cases}
c=hypotenuse\\
b=opposite\\
a=adjacent
\end{cases}\\\\
\textit{we'll assume is the + of the root, since you're not}\\
\textit{given further info on it, that means the I quadrant}\\\\


\bf -----------------------------\\\\
cos(\theta)=\cfrac{a}{c}\qquad sec(\theta)=\cfrac{c}{a}\qquad tan(\theta)=\cfrac{b}{a}\qquad cot(\theta)\cfrac{a}{b}


so just find the "adjacent" side, using the pythagorean theorem, and even though the square root can give you +/-, use the positive one, assuming the angle is in the 1st quadrant

keeping in mind, that the 2nd quadrant is feasible as well, since the opposite side of +2 can also be in the 2nd quadrant

but anyhow, use the I quadrant

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3 years ago
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Oksana_A [137]

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Step-by-step explanation:

i hope this helps :D

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Help help please math almost done
erik [133]

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Step-by-step explanation:

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