mathematics

[justin1987]

find the value of cos1cos2cos3cos4...cos100.

[always_alone]

it's an intelligant question
answer is zerro because cos90 is zerro

[justin1987]

right answer. now try and answer my physics question. by the way, u could post some questions too, for me to answer.

[RootDBA]

Let X = {set of ALL sets that don't include themselves as members}

is X a subset of itself or not...?

[hellotoyou]

Root, do you want the demonstration, or simply the answer?

[justin1987]

yes, its a subset of itself

[RootDBA]

But that contradicts the condition that it cannot be a subset of itself...

try again