If cos mx = cos nx, m ≠ n, then x =______________.

Open in App

Solution

If cos mx = cos nx ; m ≠ n

i.e mx = 2rπ ± nx ; r∈Z

i.e x(m ± n) = 2rπ

i.e x = $\frac{2 r π}{m \pm n}$

Suggest Corrections

Similar questions

lim x \to 0 \frac{1 - cos m x}{1 - cos n x}

{lim}_{x \to 0} \frac{1 - c o s m x}{1 - c o s n x}

cos x + sec x = - 2

n

{cos}^{n} x + {sec}^{n} x

s i n^{3} x s i n 3 x = \sum_{m = 0}^{n} C_{m} c o s m x

c_{0}, c_{1}, c_{2}, . . . . . . . . . . . c_{n}

C_{n} \neq 0

l i m x \to 0

\frac{1 - c o s m x}{1 - c o s m x}

Join BYJU'S Learning Program