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Using the Calculator - Problem 4
Every once in a while we need to plug in a complicated function into our calculator. So behind me I have some of the more obscure equations that we will look at. We're saying like a fourth root, a higher power root, choose a probability, or a factorial and we need to plug these into our calculator.
So sometimes these things can be hard to find so I'm just going to walk you through where most of these function are. So let's go take a look.
In order to plug in a higher root, what you have to do is plug the root that you're concerned with, so what we're looking at before is the fourth root of 10, so hit the root you're concerned with so in that case 4 and then hit the Math button then you scroll down to the x root portion, number 5 and then hit the number they want put inside and what comes out is the fourth root of 10. So make sure you always put your root in first and then the number you're concerned with.
Another thing we can do is our probability, our combinations or permutations so for this what we do is you plug the number you are choosing from so let's says we want to do 8 choose 3, you did 8 then go back to the Math button and then scroll over to the Prb option that's just probability and what you see is there is the nPr that's the permutations or the nCr the combinations, so choose whichever one you want, let's do combination and then plug in the number that you're choosing let's say 3 and what comes out is 8 choose 3. The same exact approach for our permutations.
The last thing I want to talk about is factorial, so let's say I want to do 6 factorial, hit 6 then go back to the Math button, back over to the probability and then you see the exclamation point your factorial, number 4 hit enter and what comes out is your 6 factorial which in this case is 720.
So those are some of the hard to find functions on your calculator.