रेखा \( \vec{r}=(5 \hat{i}-\hat{j}-4 \hat{k})+\lambda(2 \hat{i}-\hat{j}+\hat{k}) \) और समतल \( \... VIDEO
रेखा \( \vec{r}=(5 \hat{i}-\hat{j}-4 \hat{k})+\lambda(2 \hat{i}-\hat{j}+\hat{k}) \) और समतल \( \vec{r} \cdot(3 \hat{i}-4 \hat{j}-\hat{k})+5=0 \) के बीच का कोण \( \sin ^{-1} \frac{5}{2 \sqrt{91}} \) है।https://bit.ly/YTAI_PWAP https://www.pw.live
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