JEE Main · 2021 · 25 Jul 2021 · Shift 2 · Binomial Theorem

More JEE Main questions on Binomial Theorem

1. If the coefficient of $x$ in the expansion of $\left(a{x}^2+bx+c\right)(1-2x{)}^{26}$ is -56 and the coefficients of ${\mathrm{x}}^2$ and ${\mathrm{x}}^3$ are both zero, then $\mathrm{a}+\mathrm{b}+\mathrm{c}$ is equal to
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2. If …
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3. The coefficient of $x^{48}$ in $(1+x)+2(1+x{)}^2+3(1+x{)}^3+\dots +100(1+x{)}^{100}$ is equal to:
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4. Let ${\mathrm{C}}_{\mathrm{r}}$ denote the coefficient of ${\mathrm{x}}^{\mathrm{r}}$ in the binomial expansion of $(1+\mathrm{x}{)}^{\mathrm{n}},\mathrm{n}\in \mathbb{N},0\le \mathrm{r}\le \mathrm{n}$.
   
   If …
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5. The value of $\frac{{}^{100}{\mathrm{C}}_{50}}{51}+\frac{{}^{100}{\mathrm{C}}_{51}}{52}+\dots .+\frac{{}^{100}{\mathrm{C}}_{100}}{101}$ is :
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6. The sum of all possible values of $n\in N$, so that the coefficients of $x,x^2$ and $x^3$ in the expansion of $(1+x^2{)}^2(1+x{)}^n$, are in arithmetic progression is:
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