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- Question 1, Exercise 3.2
- ec{b}|}$. $ ====Solution==== Solve yourself. ====Go to ==== <text align="left"><btn type="success">[[
- Question 2, Exercise 3.2
- }{2}\hat{j}$$ \\ Which is the unit vector. ====Go To==== <text align="left"><btn type="primary">[[m
- Question 3 & 4, Exercise 3.2
- t{21}\end{align} Thus $$x=-2\pm\sqrt{21}.$$ ====Go To==== <text align="left"><btn type="primary">[[m
- Question 5 & 6, Exercise 3.2
- $ Hence coordinates of $D$ are $(-3,-2)$. ====Go To==== <text align="left"><btn type="primary">[[m
- Question 7, Exercise 3.2
- (1,-2,3)$. ====Solution==== Do yourself. ====Go To==== <text align="left"><btn type="primary">[[f
- Question 7, Exercise 3.2
- (1,-2,3)$. ====Solution==== Do yourself. ====Go To==== <text align="left"><btn type="primary">[[m
- Question 9 & 10, Exercise 3.2
- ghtarrow{OR}&=-3\hat{i}+3\hat{k}\end{align} ====Go To==== <text align="left"><btn type="primary">[[m
- Question 11, Exercise 3.2
- ghtarrow{OK}&=6\hat{i}+17\hat{j}\end{align} ====Go To==== <text align="left"><btn type="primary">[[m
- Question 12, 13 & 14, Exercise 3.2
- w{AB}\,\,\parallel \,\,\overrightarrow{CD}.$$ ====Go To==== <text align="left"><btn type="primary">[[m
- Question 1, Exercise 3.3
- c{a}-\vec{b}) \cdot \vec{c}&=-11\end{align}. ====Go to ==== <text align="left"><btn type="success">[[
- Question 2 and 3 Exercise 3.3
- 99^{\circ}\text{(approximately)}\end{align} ====Go To==== <text align="left"><btn type="primary">[[m
- Question 4 and 5 Exercise 3.3
- endicular to both $\vec{a}$ and $\vec{b}$. ====Go To==== <text align="left"><btn type="primary">[[m
- Question 6 Exercise 3.3
- \Rightarrow m&=\dfrac{27}{38} \end{align} ====Go To==== <text align="left"><btn type="primary">[[m
- Question 7 & 8 Exercise 3.3
- |}=\dfrac{1}{2.1}=\dfrac{1}{2} \text {. }$$ ====Go To==== <text align="left"><btn type="primary">[[m
- Question 9 & 10, Exercise 3.3
- W&=14-3+1=12 \text { units. }\end{align} ====Go To==== <text align="left"><btn type="primary">[[m