Let \( \mathrm{a}, \mathrm{b} \) and \( \mathrm{c} \) be distinct p... VIDEO
Let \( \mathrm{a}, \mathrm{b} \) and \( \mathrm{c} \) be distinct positive numbers. If the
\( \mathrm{P} \) vectors \( a \hat{i}+a \hat{j}+c \hat{k}, \hat{i}+\hat{k} \) and \( \hat{i}+\hat{c j}+b \hat{k} \) are co-
W planar, then \( \mathrm{c} \) is equal to:
(1) \( \frac{2}{\frac{1}{a}+\frac{1}{b}} \)
(2) \( \frac{a+b}{2} \)
(3) \( \frac{1}{\mathrm{a}}+\frac{1}{\mathrm{~b}} \)
(4) \( \sqrt{\mathrm{ab}} \)
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live
Other Videos By PW Solutions 2023-04-06 If \( \vec{a}, \vec{b}, \vec{c} \) and \( \vec{p}, \overrightarrow{... 2023-04-06 Given three vectors
\( \mathrm{P} \)
\( \overrightarrow{\mathrm{V}}... 2023-04-06 If \( \vec{a}=\hat{i}+\hat{j}+\hat{k}, \vec{b}=4 \hat{i}+3 \hat{j}+... 2023-04-06 If \( (1,5,35),(7,5,5),(1, \lambda, 7),(2 \lambda, 1,2) \) are
P co... 2023-04-06 Let \( \vec{a} \times(\vec{b} \times \overrightarrow{\mathrm{c}})=\... 2023-04-06 Let \( \vec{a}=\hat{i}+\hat{j}+\hat{k}, \vec{b}=\hat{i}-\hat{j}+2 \... 2023-04-06 If \( \vec{a}=\frac{1}{\sqrt{10}}(3 \hat{\mathrm{i}}+\hat{\mathrm{k... 2023-04-06 Let the volume of a parallelopiped whose
\( \mathrm{P} \) cotermino... 2023-04-06 Let \( \overrightarrow{\mathrm{c}} \) be vector perpendicular to th... 2023-04-06 The number of integral values of \( p \) for which \( (p+1) \)
\( \... 2023-04-06 Let \( \mathrm{a}, \mathrm{b} \) and \( \mathrm{c} \) be distinct p... 2023-04-06 Let \( \vec{r} \) be a vector perpendicular to \( \vec{a}+\vec{b}+\... 2023-04-06 Let \( \vec{a}=i-\alpha \hat{j}+\beta \hat{k}, \quad \vec{b}=3 i+\b... 2023-04-06 Let \( \vec{a}=i-\alpha \hat{j}+\beta \hat{k}, \quad \vec{b}=3 i+\b... 2023-04-06 Find a set of vectors reciprocal to the set
\( \mathrm{P} \) \( -\h... 2023-04-06 If \( \vec{a} \times(\vec{b} \times \vec{c})=(\vec{a} \times \vec{b... 2023-04-06 Let \( \vec{a}=\vec{i}+\vec{j}+\vec{k} \) and \( \vec{b}=\vec{j}-\v... 2023-04-06 If \( \vec{a}, \vec{b}, \vec{c} \) and \( \vec{a}^{\prime}, \vec{b}... 2023-04-06 If \( \overrightarrow{a^{\prime}}=\hat{i}+\hat{j}, \overrightarrow{... 2023-04-06 If \( \vec{a} \vec{b} \vec{c} \) and \( \vec{a}^{\prime}, \vec{b}^{... 2023-04-06 If \( \vec{a}=\hat{i}+\hat{j}, \vec{b}=\hat{j}+\hat{k}, \vec{c}=\ha...