If in the expansion of (1+x)^n ,a ,b ,c ...

If in the expansion of `(1+x)^n ,a ,b ,c` are three consecutive coefficients, then `n=` a. `(a c+a b+b c)/(b^2+a c)` b. `(2a c+a b+b c)/(b^2-a c)` c. `(a b+a c)/(b^2-a c)` d. none of these

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ARIHANT MATHS ENGLISH-BIONOMIAL THEOREM-Exercise (Subjective Type Questions)

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if Sn = C0C1 + C1C2 +...+ C(n-1)Cn and S(n+1)/Sn = 15/4 then n is
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C1/C0+2C2/C1+3C3/C2+............+nCn/C(n-1)=(n(n+1))/2
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Find the term in(3sqrt(((a)/(sqrt(b))) + (sqrt((b)/ ^3sqrt(a))))^(21) ...
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The coefficient of x^r[0lt=rlt=(n-1)] in the expansion of (x+3)^(n-1)+...
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Prove that if p is a prime number greater than 2, then the difference ...
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Solve the equation ""^(11)C(1) x^(10) - ""^(11)C(3) x^(8) + ""^(11)...
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If (1 + x)^(n) = C(0) = C(1) x + C(2) x^(2) + …+ C(n) x^(n) , find...
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Evaluate sum(0 le i le j le 10) ""^(21)C(i) * ""^(21)C(j).
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Find the coefficient of x^4 in the expansion of (1+x+x^2+x^3)^(11)dot
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Find the coefficient of x^4 in the expansion of (2-x+3x^2)^6dot
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If for z as real or complex, (1+z^2+z^4)^8=C0+C1z2+C2z4++C(16)z^(32)t ...
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If for z as real or complex such that (1+z^(2) + z^(4))^(8) = C(0)...
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If a(0), a(1),a(2),… are the coefficients in the expansion of (1 +...
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