Mathematics · 2020
JEE Main · 9 January 2020, Shift 1 · Q71
The coefficient of x^4 in the expansion of (1+x+x^2)^10 is \ \ \ \.
The coefficient of $\displaystyle x^4$ in the expansion of $\displaystyle \left(1+x+x^2\right)^{10}$ is \_\_\_\_.
Official answer
615
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JEE Main 2020 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.