What is the general solution for cos(θ)= 2/11 ?

The general solution for cos(θ)= 2/11 is θ=1.38796…+2pin,θ=2pi-1.38796…+2pin

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

cos(θ)= 2/11

cos (θ) = \frac{2}{11}

θ = 1.38796 \dots + 2 πn, θ = 2 π - 1.38796 \dots + 2 πn

Solution steps

cos (θ) = \frac{2}{11}

Apply trig inverse properties

θ = arccos (\frac{2}{11}) + 2 πn, θ = 2 π - arccos (\frac{2}{11}) + 2 πn

Show solutions in decimal form

θ = 1.38796 \dots + 2 πn, θ = 2 π - 1.38796 \dots + 2 πn

3 cos (x) + 5 = 7, 0 \leq x \leq 2 π

9 sin (\frac{x}{2}) + 9 cos (x) = 0

- 5 cos (x) + 5 sin (x) = \frac{5 2}{2}

10 sin (θ) = 4 cos^{2} (θ) + 2

cos (x) = - \frac{1}{3}

What is the general solution for cos(θ)= 2/11 ?
The general solution for cos(θ)= 2/11 is θ=1.38796…+2pin,θ=2pi-1.38796…+2pin