Subject: Math problem!

1+1=10.

it's not right!

1+1=11

Yes it is, in binary numeral system.

No, in binaries 1+1 = 10

A favorite to young informatics students saying states: "There are 10 types of people. Those who understand binary and those who don't".

I prefer its alternative version though: "There are 10 types of people. Those who understand binary and those who get laid".

[chino]

I'm sure you also understand binary, otherwise you wouldn't understand the joke ;)

Sure. Sadly for the rest of the world I'm a computer engineer. :P

There are 3 types of people. Those who know how counting and those who don't".

cosxcos2xcos4x=1/8
find x

x=0.349065850398866 radians
or
x=20 deg

I think his teacher will ask an explanation also... :D

I thought myself I won't go away that easily :) I like this kind of math puzzles altough I do not solve them manually. For this one I used Mathcad, then checked the solution with Microsoft Math. Both indicated this values. I guess TLKSolver will also do the job altough I haven't tried (yet?). Also just for equation solving, e.g. math homework, the software called Equation Wizzard (http://www.equationwizard.com/) will solve an equation in steps, the same way which it is done manually and written as in a homework book. It's also good for parents which might need to help their kids doing their math homework.
Still the best way to learn math and keep your neurons alive is to do it alone with a pencil and a piece of paper and some bibliography or good math books nearby. :)

1 + 1 = ten in binary? wow

now i get that joke XD

:)

No, in binaries 1+1 = 10

if the space of admitted symbols is {0,1} then 1+1=0;

if the space of admitted symbols is {0,1}^k with k>=2, then 1+1 = 10.