Recommended Questions
- सिद्ध कीजिए कि- .^nC0 .^(n+1)Cn +.^nC1 .^(n)C(n-1)+.^nC2 .^(n-1)C(n-2...
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- If (nC0)/(2^n)+2.(nC1)/2^n+3.(nC2)/2^n+....(n+1)(nCn)/2^n=16 then the ...
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- (1+x)^n=1+""^nC1x+""^nC2x^2+* * +""^nCnx^n হলে দেখাও যে, n*2^(n-1)=""^...
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- If .^nC0,^nC1,^nC2,.....^nCn are frequencies of n+1 observations 1,2,2...
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- .^nC0 - .^nC1 + .^nC2 - … + (-1)^n .^nCn=
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- 1/2. ""^nC0 + ""^nC1 + 2. ""^nC2 + 2^2. ""^nC3 + …….+ 2^(n-1) . ""^nCn...
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- Prove that nC1(nC2)^2(n C3)^3.......(n Cn)^n le ((2^n)/(n+1))^((n+1)C2...
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- Prove that ""^nC0+2*""^nC1+3*""^nC2+...+(n+1)""^nCn=(n+2)2^(n-1)
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- Prove that ""^nC0+3*""^nC1+5*""^nC2+...+(2n+1)""^nCn=(n+1)2^(n)
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