Melody

$$\\cot\theta=0.675\\\\
\frac{adj}{opp}=\frac{0.675}{1}\\\\
hypotenuse=\sqrt{0.675^2+1}=\sqrt{1.455625}\\\\
sin\theta=\frac{opp}{hyp}=\frac{1}{\sqrt{1.455625}}\\\\
sec\theta=\frac{1}{cos\theta}=\frac{hyp}{adj}=\frac{\sqrt{1.455625}}{0.675}\\\\$$

yes  example

$${\mathtt{3}}{\mathtt{\,\times\,}}{\mathtt{x}} = {\mathtt{7}} \Rightarrow {\mathtt{x}} = {\frac{{\mathtt{7}}}{{\mathtt{3}}}} \Rightarrow {\mathtt{x}} = {\mathtt{2.333\: \!333\: \!333\: \!333\: \!333\: \!3}}$$

WOW    Very impressive Heureka   :)))

Maybe this might help you accept it

$$\\5^3 \div 5^4= 5^{3-4}=5^{-1}\\\\
BUT\\\\5^3 \div 5^4= \frac{5*5*5}{5*5*5*5}=\frac{\not{5}\not{5}\not{5}}{\not{5}*\not{5}*\not{5}*5}=\frac{1}{5}\\\\
so\\\\
5^{-1}=\frac{1}{5}\\$$  

By the same logic

$$2^{-1}=\frac{1}{2}$$

It is just the distance from the origin.

$$|2-3i|=\sqrt{2^2+(-3)^2}=\sqrt{4+9}=\sqrt{13}$$

Hi DragonSlayer, it is really good to see you here.  Visit as often as you can :)

Thanks for the great site. 

I have included the address in our  Reference Material sticky note. 

What do you want to change it into.

Maybe Morgan Tud could help you.  He knows much magic and I have seen him in the realm only yesterday:)

Nice answer mathematician. 

1000(1+[0.04/12])^(3*12)

Okay Rosala,  I gave you the mod 3 points because I believe you really did try to do it and that you will learn from Heureka's answer. 

You are not going to be untrue to my assumption are you Rosala.