If (nCr+4 nC(r+1)+6 nC(r+2)+ 4 nC(r+3)+...

If `(nC_r+4 nC_(r+1)+6 nC_(r+2)+ 4 nC_(r+3)+nC_(r+4))/(nC_r+3 nC_(r+1)+3 nC_(r+2)+nC_(r+3))=(n+k)/(r+k)` then the value of k is :

If (nCr+4 nC(r+1)+6 nC(r+2)+ 4 nC(r+3)+nC(r+4))/(nCr+3 nC(r+1)+3 nC(r...
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Show that nC(r)=(n-r+1)/(r)*(nC(r-1))
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If (nC(r)+4nC(r+1)+6nC(r+2)+4nC(r+3)+nC(r+4))nC(r)+3nC(r+1)+3nC(r+2)+n...
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det[[ The value of the determinant nC(r-1),nC(r),(r+1),n+2C(r+1)nC(r),...
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Prove that two +ive integers n,r cannot be found such that ^nCr ,^nC(r...
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यदि (.^nC(r))/(.^nC(r+1))=(1)/(2) और (.^nC(r+1))/(.^nC(r+2))=(2)/(3),n...
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.^nCr:^nC(r+1):^nC(r+2) = 1:2:3 হলে, n ও r-এর মান নির্ণয় কর।
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.^nC(r-1) = 36, ^nCr = 84 এবং .^nC(r+1) = 126 হলে n ও r-এর মান নির্ণয...
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""^(n) C(r+1)+2""^(n)C(r) +""^(n)C(r-1)=
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