Melody

Okay

Where's 'our' KNOW-IT-ALL TROLL when we need him?

He's probably AWOL with Sir Cumference!

I factorised it.  And now I have another function to put in the LaTex thread!

$$f(x)=2\sqrt[5]x(x^3-2)\\$$

Yes I am sure.

Because 

Two out of three ain't bad!

You dare to be disrespectful, Sir CPhill.
I, Queen Guinevere, will strip you of your title, and banish you and your lowly servant Master Leaf from my sovereign kingdom forever!

Master Leaf, you are expected to explain yourself if you wish to stay in these fair lands!

EXCELLENT!!!!!

Good work GoldenLeaf,

Now can you show this person how to isolate x by hand? (I've already given thumbs up but this person probably needs a more manual approach.

Okay Chris, 

I am taking a look at yours.

Now, let's look at the possible sets where 1 skier dies. This is given by C(3,1)*C(13,3) = 858 sets

shouldn't this be 3C1*14C3 = 3*364=1092 ?

Okay, we have 3 answers - all different 

We need an arbitrator - preferably one who knows what he/she is talking about.

also if possible please explain what is wrong with our logic.

Thank you.

What are you presenting?

inverse sine is exactly the same as arc sine (asin) and that will most likely be all the help that you need.