3 years ago

Is 0/12 a rational or irrational number

Mathematics

1 answer:

kondor19780726 [428]3 years ago

6 0

I feel like it would be rational because 0/12 = 0, and 0 is a rational number.

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Trigonometric Identities and Applications? help

Vadim26 [7]

$\bf h=-15cos\left( \frac{2\pi }{5}t \right)\qquad \boxed{h=8}\qquad 8=-15cos\left( \frac{2\pi }{5}t \right)
\\\\\\
\cfrac{8}{-15}=cos\left( \frac{2\pi }{5}t \right)\implies cos^{-1}\left( \frac{8}{-15}\right)=cos^{-1}\left[ cos\left( \frac{2\pi }{5}t \right) \right]
\\\\\\
cos^{-1}\left( \frac{8}{-15}\right)=\cfrac{2\pi }{5}t\implies \cfrac{5}{2\pi }\cdot cos^{-1}\left( \frac{8}{-15}\right)=t\\\\
-------------------------------$

$\bf cos^{-1}\left( \frac{8}{-15}\right)=\stackrel{radians}{\stackrel{II~quadrant}{\approx 2.13}~~,~~\stackrel{III~quadrant}{\approx 4.15}}\qquad \qquad 
t=
\begin{cases}
\frac{5}{2\pi }\cdot 2.13\\\\
\frac{5}{2\pi }\cdot 4.15
\end{cases}$

3 0

3 years ago

Suppose 3 <br> <img src="https://tex.z-dn.net/?f=%5Cfrac%7Bb%7D%7B3a%7D" id="TexFormula1" title="\frac{b}{3a}" alt="\frac{b}{3a}

pshichka [43]

0 is the correct answer I think

4 0

2 years ago

Is 0.48 equal to 6/15

Yuliya22 [10]

No is not because 6/15 is 0.4

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3 years ago