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What is the difference between multiplication and convolution?
multiplication is point to point and convolustion is point to multi-point ex multiplication-- s[n]=x[n].h[n] s[0]=[x[0].h[0] s[1]=[x[1].h[1] s[2]=[x[2].h[2] . . . .. s[n-1]=[x[n-1].h[n-1] convollustion s[n]=x[n]*h[n] s[0]=[x[0].h[0]+x[0].h[1]+x[0].h[2]+.......+x[0].h[n-1] s[1]=[x[1].h[0]+x[1].h[1]+x[1].h[2]+.......+x[1].h[n-1] s[2]=[x[2].h[2]+x[2].h[1]+x[2].h[2]+.......+x[2].h[n-1] . . . s[n-1]=[x[n-1].h[0]+x[n-1].h[1]+x[n-1].h[2]+.......+x[n-1].h[n-1].
Find the number of combinations of 10 things taken 6 at a time?
Try 151,600! Permutations & Combinations. P(n,r)=n!(n−r)! not P(n,r)=n!/(n!-r!)r! ?
What is the value of 8P4?
1680 to get this answer you need to get the factorial of 8 and the factorial of 4! like so 8! is n! 8*7*6*5*4*3*2*1=n!_40320 4! is r! 4*3*2*1=r!_24 now divide the two! n!/r!(n-r)!=1680 8!/4!(8-4)!=1680 8!/4!=1680
At a certain rate of compound interest rs 15320 becomes rs 30640 in 6 years what is the rate of interest?
12%
A sum of money doubles itself at compound interest compounded annually in 15 years-what is the rate of interest?
The formula is (1+r)^n -1. r= rate of return (ie 100%) n=number of compounding periods so (1+1)^15 -1= 32767 or 3276700%
