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52P13Help!
In how many ways can 13 cards in a pack of 52 cards be arranged?
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52P13Help!
In how many ways can 13 cards in a pack of 52 cards be arranged?
shldnt combination be used here? as well as permutation ofc52P13
no. all cards are different and they are to be arranged and not chosen.shldnt combination be used here? as well as permutation ofc
owwkay .-.no. all cards are different and they are to be arranged and not chosen.
I. How many 4 digit numbers can be formed from the digits 1,2,3 and 5 If repetitions are not allowed?
II. How many 4 digit numbers divisible by 5 can be formed from the digits above?
I- 4!
Thanks
For part II you take it as non repeating again?
Why not 3! +/× 2! ?
Thanks in advance
That's the normal to the plane right? How do you find it?find normal (n hat) by doing cross product with the direction of line l and the directon vector A.
replace in the formula r. n hat = a . n hat
a can be the point in line equation (4,-2,2)
replace n u get the answer.
cross product of direction of line n direction vector AThat's the normal to the plane right? How do you find it?
Yeah what's the general equation for it? Is it the cross product of the position vector of any point on a plane and the direction vector? Isn't the direction of line l the same as the direction vector A?cross product of direction of line n direction vector A
i mentioned it there
practice papers a lot.can anyone tell me how to study math as level pure math and stats 1
Understanding concepts and applying them into exercise and papers is the way. All the best.can anyone tell me how to study math as level pure math and stats 1
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