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What are all the major keys that dont have parallel minors?
Every major key has a parallel minor. ______________________ What you are referring to is that some keys only exist in theory and not in practice, the major keys of D flat, G flat and C flat have parallel minors but they are never used due to notational difficulties caused by the requirement for a double flat; so C sharp, F sharp and B minors are used instead of their 'theoretical' enharmonics.
What is the 118th sequence in y-r-r-y-r-r-y-r-r-y-r-r-y-r-r?
It is y. Every third letter is r, immediately followed by y, and since 117 is divisible by 3, it is r. Therefore, 118 is y.
Prove that nCr plus nCr minus 1 equals n plus 1Cr?
nCr + nCr-1 = n!/[r!(n-r)!] + n!/[(r-1)!(n-r+1)!] = n!/[(r-1)!(n-r)!]*{1/r + 1/n-r+1} = n!/[(r-1)!(n-r)!]*{[(n-r+1) + r]/[r*(n-r+1)]} = n!/[(r-1)!(n-r)!]*{(n+1)/r*(n-r+1)]} = (n+1)!/[r!(n+1-r)!] = n+1Cr
How can you write 5r equals 10?
r+r+r+r+r=10 therefore, r must equal two
What is the meaning of R and R?
R&R = rest and recuperation (or rest and relaxation).
