If \( \overrightarrow{\mathrm{r}} \cdot \hat{\mathrm{i}}=2 \overrig... VIDEO
If \( \overrightarrow{\mathrm{r}} \cdot \hat{\mathrm{i}}=2 \overrightarrow{\mathrm{r}} \cdot \hat{\mathrm{j}}=4 \overrightarrow{\mathrm{r}} \cdot \hat{\mathrm{k}} \) and \( |\overrightarrow{\mathrm{r}}|=\sqrt{84} \), then the valuehttps://bit.ly/YTAI_PWAP https://www.pw.live
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