Period of (7x - 5) is - Vidyadip

MCQ

Period of $\cos (7x - 5)$ is

A
$\frac{{2\pi - 5}}{7}$
B
$2\pi - 5$
✓
$\frac{{2\pi }}{7}$
D
$\frac{\pi }{7}$

✓

Answer

Correct option: C.

$\frac{{2\pi }}{7}$

c
(c) 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

JEE STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Let function $f(x) = {x^2} + x + \sin x - \cos x + \log (1 + |x|)$ be defined over the interval $[0, 1]$. The odd extensions of $f(x)$ to interval $[-1, 1]$ is

The coefficient of ${x^7}$ in the expansion of ${\left( {\frac{{{x^2}}}{2} - \frac{2}{x}} \right)^8}$ is

A box contains coupons labelled $1,2,3, \ldots, n$. A coupon is picked at random and the number $x$ is noted. The coupon is put back into the box and a new coupon is picked at random. The new number is $y$.Then, the probability that one of the numbers $x, y$ divides the other is (in the options below $[r]$ denotes the largest integer less than or equal to $r$)

The gradient of the line joining the points on the curve $y = {x^2} + 2x$ whose abscissa are $1$ and $3$, is

The eccentricity of the conic $4{x^2} + 16{y^2} - 24x - 3y = 1$ is

Two dice are thrown simultaneously. The probability of getting the sum $2$ or $8$ or $12$ is

${d \over {dx}}\left\{ {{e^x}\log (1 + {x^2})} \right\} = $

The coefficients $a, b, c$ in the quadratic equation $a x^2+b x+c=0$ are from the set $\{1, 2, 3, 4, 5, 6\}.$ If the probability of this equation having one real root bigger than the other is $p,$ then $216p$ equals $:$

A function $y = f(x)$ has a second order derivatives $f''(x) = 6(x - 1)$. If its graph passes through the point $(2, 1)$ and at that point the tangent to the graph is $y = 3x - 5$, then the function is

If function $f(x) = \left\{ \begin{array}{l}\frac{{{x^2} - 1}}{{x - 1}},\,\,{\rm{when}}\,\,x \ne 1\\\,\,\,\,\,\,\,\,\,\,\,\,k,\,{\rm{when}}\,\,x = 1\end{array} \right.$ is continuous at $x = 1$, then the value of $k$ will be