/sci/ - Science & Math

(p+3)(p-3)

:)

gravity stays the same.

the reason the pullups are easier is because you get to use the strongest part of your arm. at the start of the curl, from full vertical hang your arms are straight, you would have to use the end part of your bicep (weak) to begin the pull, untill your arm curls enough so that the middle (strong) part of the muscle can help.
if the bar is low, when your grip it your arm is already curved, and the full strength of your bicep can start to act straight away to lift you upwards, so the pullup is easier (you also move less distance, so less work is done)

hope that helps :)

xxx.

>>2516876
it is because you are not picking a chip, you are picking a side.

you have to count the double sides reds (25 of them) as seperate. so you have 50 chances to pick a red side that also has a red side.

there are only 10 other red sides, and these have blue on the other side

so thats 50 pure reds, to 10 mixed, and you can ignroe the 5 pure blues because you know you can't have picked one.

50/(50+10) = 50/60 = 5/6

kudo's to these guys >>2516830
>>2516852

combine like terms
the brackets can go, for a start...
after that is done, just keep y on the left, and move everything else over to the right.
(whatever you do to one side, you must do to the other. so to get rid of [-x-4) just add an x and a 4 to both sides.