Download App

Vector Algebra — Maths STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceMathsVector Algebra1 Mark
MCQ
If $\overline{\text{a}},\overline{\text{b}},\overline{\text{c}}$ are unit vectors such that $\overline{\text{a}}+\overline{\text{b}}+\overline{\text{c}}+\overline{\text{c.a}}=$
  • A
    $\frac{3}{2}$
  • ✓
    $-\frac{3}{2}$
  • C
    $\frac{1}{2}$
  • D
    $-\frac{1}{2}$
✓

Answer

Correct option: B.
$-\frac{3}{2}$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from Vector Algebra→Vector Algebra — all question types→Maths STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

Two coins $A$ and $B$ are kept in an urn. When coin $A$ is flipped the probability of geting Head is. $1/4$ while for $B$ is $3/4$. One Coin is randomly chosen form this bag and tossed twice, and it falls head on both occassions. The probability that it is coin $A$ is
→
Let $A=\{a, b, c\}$ and $B=\{1,2,3,4\}$ Then the number of elements in the set $C =\{ f : A \rightarrow B \mid 2 \in f ( A )$ and $f$ is not one-one $\}$ is
→
If ${\tan ^{ - 1}}x + {\tan ^{ - 1}}y = \frac{\pi }{4}$ then
→
The degree of the differntial equation $\left\{5+\Big(\frac{\text{dy}}{\text{dx}}\Big)^{2}\right\}^{\frac{5}{3}}=\text{x}^{5}\Big(\frac{\text{d}^{2}\text{y}}{\text{dx}^{2}}\Big)$ is:
→
$\int_{}^{} {\frac{{{{\sec }^2}x\;dx}}{{\sqrt {{{\tan }^2}x + 4} }} = } $
→
The solution of the differential equation $\frac{\text{dy}}{\text{dx}}=\frac{\text{y}}{\text{x}}+\frac{\phi(\frac{\text{y}}{\text{x}})}{\phi'(\frac{\text{y}}{\text{x}})}$ is:
→
If $\text{f(x)}=\text{x}^2+\frac{\text{x}^2}{1+\text{x}^2}+\frac{\text{x}^2}{(1+\text{x}^2)}+....+\frac{\text{x}^2}{(1+\text{x}^2)}+....,$ then at x = 0, f(x):
→
Let the area of the region $\left\{(x, y):|2 x-1| \leq y \leq\left|x^2-x\right|, 0 \leq x \leq 1\right\}$ be $A$. Then $(6 A +11)^2$ is equal to $.......$.
→
If $i,\,\,j,\,\,k$ are unit orthonormal vectors and  $ a $ is a vector, if $a \times r = j,$ then $a . r$  is
→
The value of the integral $\int\limits_{ - 2}^2 {\frac{{{{\sin }^2}\,x}}{{\left[ {\frac{x}{\pi }} \right] + \frac{1}{2}}}\,\,dx} $ (where $[x]$ denotes the greatest integer less than or equal to $x$ ) is
→