cos x 1 = cos x ⇒ 2 cos x = 1 ⇒ cos x = 1/2 ⇒ x= 2k π #160; + π /3 , #160; 2k π #160; + 5π/3 #160; ∀ k ε #160; z ...

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Chain Rule of Differentiation

Solve: cosx...

Question

Solve: $cos x - 1 = cos x$

Open in App

Solution

$c o s x - 1 = - c o s x$

$\Rightarrow 2 c o s x = 1$

$\Rightarrow c o s x = 1 / 2$

$\Rightarrow x = 2 k π + π / 3, 2 k π + \frac{5 π}{3} \forall k ε z$

Suggest Corrections

Similar questions

\int \frac{cos x}{1 + cos x}

\frac{cos x - cos 2 x}{1 - cos x}

\frac{d y}{d x} = \frac{1 - cos x}{1 + cos x}

(\frac{1 - cos x}{1 + cos x}) = {tan}^{2} \frac{x}{2}

(cos x - sin x) (2 tan x + \frac{1}{cos x}) + 2 = 0

Join BYJU'S Learning Program