nCr function : ExamSolutions

[ronljudd]

Uploaded on my unbirthday!

[smellybeans1]

Brilliant - Thanks.

Maybe a little bit overly simplified (I just wanted to know a quicker way of doing this on the calculator), but useful none the less! : )

[Skux32]

Now this vid, cleared everything up... Thank you thank you thank you:)

[tanviraliify]

LOL THIS WAS UPLOADED ON MY BIRTH DAY

[ExamSolutions]

@tanviraliify A belated happy birthday to you.

[089sailboot]

@tanviraliify you are 3 years old?

[17thsummer]

Can you upload some videos for mathematical induction too?

[SHQPip]

Very much old school here, rather than say working out the full equation can be tedious isn't always true. you can whittle alot of the maths by removing extraneous factors from top and bottom (numerator and denominator).

Eliminating 3x2x1 from top AND bottom leaves you with

(5x4) / (2x1) = 20 /2 = 10 .... not that hard.

[therealjordiano]

hehe i always wondered what that did :) ty for the tutorials, they are great 

[ExamSolutions]

@therealjordiano Thanks

[mandarkm]

can u provide me with the link for the scientific calculator emulator

[ExamSolutions]

@mandarkm studentcalculators.co.uk

[SnakeEatersz]

Where can i download that casio calculator for use on my computer? Or is it only supplied for teaching use?

[ExamSolutions]

@SnakeEatersz You can by this casio emulator from Oxford calculators

[LikeItDeep]

Thanks yet again

[petersrolo]

nC0 always works out to be one for any positive integer but when r equals zero your dividing by zero ?!?

Example 4C0 = 1

But according to this its (4!)/[(4!)x0]

which is 4!/0

Im probably just interpreting this wrong

[ExamSolutions]

@petersrolo nC0 is defined as 1 mainly for convenience. We do not take the formula literally fot this value.

[DarkForgottenUchiha]

Okay soo, how exactly does nCr = n!/(n-r)!r! .....

I get how to do what your doing but i dont know how nCr relates to that formula? anyone have a clue?

[ExamSolutions]

@DarkForgottenUchiha Its a definition.

[akbar2k7]

Thanks dude keep it up great work:) I am doing a FSMQ and all my friends were a bit lost with the Binomial stuff I watched Your vid on it and it mad everything SIMPLE. Thank you Gratitude from the Boys Of Norlington School.

[ExamSolutions]

Thanks

[oweniraq]

thank u soooo much, I had no idea what this meant until I watched this video

[ExamSolutions]

No probs.

[janrambo420]

i found out about this like 2 days ago...i wasted so much precious time drooling over my c2 textbook.....now im probably gonna get a D or C........im gona have to cram it all now....ur vids are really helpful....

[ExamSolutions]

Hope all goes well for you tomorrow

[sizzlerz93]

thank u so much, i have my C2 exam next week and i need this

[ExamSolutions]

Thanks - Good luck next week

[Sammyx92]

Thanks so much for the help! I am using your website and videos to help me revise for my upcoming exams. I know you are very busy but I was wondering if you have completed any more C2 revision.

[ExamSolutions]

More C2 vids will be coming but it is governed by who makes a donation to Maths Aid on my site and what they request.

[haiko213]

thanks! great video!

[jrjr18181]

Thank you very much, may you continue to educate the world :)

[ExamSolutions]

Cheers - TO THE WORLD!.

[0Trashion0]

You have nooo idea how helpful you are

:]

[ExamSolutions]

They are the same - both do the nCr function the same way