\( A B C \) be a triangle, the position vectors of whose vertices are respectively \( 7 \hat{j}+... VIDEO
\( A B C \) be a triangle, the position vectors of whose vertices are respectively \( 7 \hat{j}+10 \hat{k}-\hat{i}+6 \hat{j}+6 \hat{k} \) and \( -4 \hat{i}-9 \hat{j}+6 \hat{k} \). Then, \( \triangle A B C \)https://bit.ly/YTAI_PWAP https://www.pw.live
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