The angle between the vectors a b and b a is - Vidyadip

MCQ

The angle between the vectors $\vec{a} \times \vec{b}$ and $\vec{b} \times \vec{a}$ is

A
0
B
90°
C
135°
D
180°

✓

Answer

self

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 [ Question Bank ]→[ Question Bank ] — all question types→Maths STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

Let $p\left( x \right)$ be a function defined on $R$ such that $p'\left( x \right) = p'\left( {1 - x} \right),$ for all $x \in \left[ {0,1} \right]$ $p\left( 0 \right) = 1,p\left( 1 \right) = 41.$ then $\mathop \smallint \limits_0^1 p\left( x \right)dx = $

Function $f(x) = \left\{ {\begin{array}{*{20}{c}} {sgn \left( {\left[ x \right]} \right)\,\,\,\,;\,\,\,x \ne I} \\ {\left[ {sgn \left( x \right)} \right]\,\,\,;\,\,\,x = I} \end{array}} \right.$ is '( where $sgn ()$ denotes signum function $and$ $[.]$ denotes greatest integer function )

For which interval the given function $f(x) = - 2{x^3} - 9{x^2} - 12x + 1$ is decreasing

If $\left| {\begin{array}{*{20}{c}}{x - 4}&{2x}&{2x}\\{2x}&{x - 4}&{2x}\\{2x}&{2x}&{x - 4}\end{array}} \right| = \left( {A + Bx} \right){\left( {x - A} \right)^2},$ then the ordered pair $\left( {A,B} \right) = $. . . . .

$\int\limits^\pi_0\frac{1}{\text{a}+\text{b}\cos\text{x}}\text{ dx}=$

$\frac{\pi}{\sqrt{\text{a}^2-\text{b}^2}}$
$\frac{\pi}{\text{ab}}$
$\frac{\pi}{\text{a}^2-\text{b}^2}$
$({\text{a}+\text{b}})\pi$

If $f(x)=x^2 g(x)$ and $g(x)$ is twice differentiable, then $f^{\prime \prime}(x)$ is equal to

In a college 30% students fail in Physics, 25% fail in Mathenatics and 10% fail in both. One student is chosen at random. The probability that she fails in Physics if she failed in Mathematics is.

Maximum value of $x{(1 - x)^2}$ when $0 \le x \le 2$, is

$\int {\frac{{dx}}{{1 - \cos x - \sin x}}} = $

The direction cosines of the normal to the plane $3x + 4y + 12z = 52$ will be