If \( \mathrm{A}(\overline{\mathrm{a}}) ; \mathrm{B}(\overline{\mat...

Channel:
Subscribers:
445,000
Published on ● Video Link: https://www.youtube.com/watch?v=vxi1_A3JsKw



Duration: 13:27
9 views
0


If \( \mathrm{A}(\overline{\mathrm{a}}) ; \mathrm{B}(\overline{\mathrm{b}}) ; \mathrm{C}(\overline{\mathrm{c}}) \) and \( \mathrm{D}(\overline{\mathrm{d}}) \) are four points such that \( \bar{a}=-2 \hat{i}+4 \hat{j}+3 \hat{k} ; \quad \bar{b}=2 \hat{i}-8 \hat{j} ; \quad \bar{c}=\hat{i}-3 \hat{j}+5 \hat{k} ; \bar{d}=4 \hat{i}+\hat{j}-7 \hat{k} \)
\( \mathrm{P} \) \( \mathrm{d} \) is the shortest distance between the lines \( \mathrm{AB} \) and \( \mathrm{CD} \), then which of the following is True?

W
(A) \( \mathrm{d}=0 \), hence \( \mathrm{AB} \) and \( \mathrm{CD} \) intersect
(B) \( d=\frac{[\overrightarrow{\mathrm{AB}} \overrightarrow{\mathrm{CD}} \overrightarrow{\mathrm{BD}}]}{|\overrightarrow{\mathrm{AB}} \times \overrightarrow{\mathrm{CD}}|} \)
(C) \( \mathrm{AB} \) and \( \mathrm{CD} \) are skew lines and \( \mathrm{d}=\frac{23}{13} \)
(D) \( d=\frac{[\overrightarrow{\mathrm{AB}} \overrightarrow{\mathrm{CD}} \overrightarrow{\mathrm{AC}}]}{|\overrightarrow{\mathrm{AB}} \times \overrightarrow{\mathrm{CD}}|} \)
šŸ“²PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live




Other Videos By PW Solutions


2023-02-13Turnbull's blue is a (a) ferricyanide (b) ferrous ferricyanide (W) ...
2023-02-13A black sulphide is formed by the action of \( \mathrm{H}_{2} \math...
2023-02-13When excess of dilute \( \mathrm{NH}_{4} \mathrm{OH} \) is added to...
2023-02-13\( \mathrm{P} \) Name the conservation laws in physics. W
2023-02-13Hypochlorite disproportionates to give : (a) \( \mathrm{Cl}^{-} \)a...
2023-02-13In the case of alkali metals, the covalent character decreases in t...
2023-02-13A man travels \( 600 \mathrm{~km} \) partly by train and partly by (W) car. It takes \( 8 \mathr...
2023-02-13In the following flow diagram, identify the conrect categories acco...
2023-02-13The reaction of \( \mathrm{Cl}_{2} \) with \( X \) gives bleaching ...
2023-02-138 men and 12 boys can finish a piece of work in 10 (W) days while 6 men and 8 boys can finish it...
2023-02-13If \( \mathrm{A}(\overline{\mathrm{a}}) ; \mathrm{B}(\overline{\mat...
2023-02-13The acid having \( \mathrm{O}-\mathrm{O} \) bond is : (Haryana PMT ...
2023-02-13If the angle between the planes given by \( 6 x^{2}+4 y^{2}-10 z^{2...
2023-02-13Match the Columns Let \( (x, y) \) be such that P W) A. If \( a=1 \...
2023-02-13If \( \tan ^{-1} y=\tan ^{-1} x+\tan ^{-1}\left(\frac{2 x}{1-x^{2}}...
2023-02-13P What are conserved quantities? W
2023-02-13Students were standing in rows for a mass drill. If one student is extra in a row, there would b...
2023-02-13(a) How many five digits numbers divisible by 3 can be formed using the digits \( 0,1,2,3,4,7 \)...
2023-02-13Thermodynamically, most stable form of phosphorus is : (a) red (b) ...
2023-02-13When \( \mathrm{PbO}_{2} \) reacts with conc. \( \mathrm{HNO}_{3} \...
2023-02-13Considering only the principal values of inverse functions, the set...



Tags:
pw