Value of 0! is always 1: - Vidyadip

MCQ

Value of 0! is always 1:

✓
True
B
False
C
Either
D
Neither

✓

Answer

Correct option: A.

True

we know 1! = 1
Also n! = n × (n − 1) × (n − 2)........3 × 2 × 1n! = n × (n − 1)! 1 ! = 1(1 − 1)! 1 = 1(0)! 0 ! = 1
0! is always 1

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 "MCQ" from PERMUTATIONS AND COMBINATIONS→PERMUTATIONS AND COMBINATIONS — all question types→MATHS STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

The roots of the equation ${2^{x + 2}}{27^{x/(x - 1)}} = 9$ are given by

If ${z_1},{z_2},{z_3}$be three non-zero complex number, such that ${z_2} \ne {z_1},a = |{z_1}|,b = |{z_2}|$ and $c = |{z_3}|$ suppose that $\left| {\begin{array}{*{20}{c}}a&b&c\\b&c&a\\c&a&b\end{array}} \right| = 0$, then $arg\left( {\frac{{{z_3}}}{{{z_2}}}} \right)$ is equal to

The sum of the first $20$ terms of the series $1 + \frac{3}{2} + \frac{7}{4} + \frac{{15}}{8} + \frac{{31}}{{16}} + ...$ is?

If the straight lines $x + 3y = 4,\,\,3x + y = 4$ and $x +y = 0$ form a triangle, then the triangle is

The number of triangles that can be formed by $5$ points in a line and $3$ points on a parallel line is

If $\tan \theta + \tan 2\theta + \tan 3\theta = \tan \theta \tan 2\theta \tan 3\theta $, then the general value of $\theta $ is

The sum of $n$ terms of the infinite series $1.3^2+2.5^2+3.72 \ldots \infty$ is:

A(3, 2, 0), B(5, 3, 2), C(-9, 6, -3) are three points forming a triangle. If AD, the bisector of $\angle\text{BAC}$ meets BC in D then coordinates of D are:

Consider the following frequency distribution :

Class:	$0-6$	$6-12$	$12-18$	$18-24$	$24-30$
Frequency :	$a$	$b$	$12$	$9$	$5$

If mean $=\frac{309}{22}$ and median $=14$, than value $(a-b)^{2}$ is equal to $.....$

In a triangle $PQR ,$ the co-ordinates of the points $P$ and $Q$ are $(-2,4)$ and $(4,-2)$ respectively. If the equation of the perpendicular bisector of $PR$ is $2 x-y+2=0,$ then the centre of the circumcircle of the $\Delta PQR$ is