Out of the following which one is not true - Vidyadip

MCQ

Out of the following which one is not true

A
$a\,.\,(b \times c)$
B
$(b \times c)\,.\,a$
C
$(a \times b)\,.\,c$
✓
$(a.c)\, \times \,b$

✓

Answer

Correct option: D.

$(a.c)\, \times \,b$

d
(d) It is obvious.

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 10. vector algebra→10. 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

Choose the correct answer from the given four options.
Let A and B be two events such that $\text{P}(\text{A})=\frac{3}{8},\text{P}({\text{B}})=\frac{5}{8}$ and $\text{P}(\text{A}\cup\text{B})=\frac{3}{4}.$Then $\text{P}\Big(\frac{\text{A}}{\text{B}}\Big)\cdot\text{P}\Big(\frac{\text{A'}}{\text{B}}\Big)$ is equal to:

The area enclosed by the parabolas $y = {x^2} - 1$ and $y = 1 - {x^2}$ is

The maximum value of f = 4x + 3y subject to constraints $\text{x}\geq0,$ $\text{y}\geq0,$ $2\text{x}+3\text{y}\leq18;\text{x}+\text{y}\geq10$ is:

Choose the correct answer from the given four options.
If $\vec{\text{a}},\vec{\text{b}},\vec{\text{c}}$ are unit vectors such that $\vec{\text{a}}+\vec{\text{b}}+\vec{\text{c}}=0,$ then the value of $\vec{\text{a}}\cdot\vec{\text{b}}+\vec{\text{b}}\cdot\vec{\text{c}}+\vec{\text{c}}\cdot\vec{\text{a}}$ is:

1.
3.
$-\frac{3}{2}.$
None of these.

If the mean and variance of a binomial variate $X$ are $2$ and $1$ respectively, then the probability that $X$ takes a value greater than $1$, is

Let $f(x)$ be a polynomial of degree $3$ such that $f(-1)=10, f(1)=-6, f(\mathrm{x})$ has a critical point at $\mathrm{x}=-1$ and $f^{\prime}(\mathrm{x})$ has a critical point at $\mathrm{x}=1$ Then $f(x)$ has a local minima at $x=$

he two curves x³ - 3xy² + 2 = 0 and 3x²y - y³ - 2 = 0 intersect at an angle of:

The matrix $A = \frac{1}{3}\left[ {\begin{array}{*{20}{c}}1&2&2\\2&1&{ - 2}\\{ - 2}&2&{ - 1}\end{array}} \right]$is

The order of the differential equation of all circles of radius $r$, having centre on $y$-axis and passing through the origin is

The sine of the angle between the straight line $\frac{\text{x}-2}{3}=\frac{\text{y}-3}{4}=\frac{\text{z}-4}{5}$ and the plane 2x - 2y + z = 5 is: