Mathematics · 2020
JEE Main · 6 September 2020, Shift 1 · Q74
If a and b are unit vectors, then the greatest value of √ 3 | a + b |+| a - b | is \ \ \ \.
If $\displaystyle \vec{a}$ and $\displaystyle \vec{b}$ are unit vectors, then the greatest value of $\displaystyle \sqrt{3}|\overrightarrow{\mathrm{a}}+\overrightarrow{\mathrm{b}}|+|\overrightarrow{\mathrm{a}}-\overrightarrow{\mathrm{b}}|$ is
\_\_\_\_.
Official answer
4
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JEE Main 2020 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.