What is the general solution for cos(θ)= 3/10 ?

The general solution for cos(θ)= 3/10 is θ=1.26610…+2pin,θ=2pi-1.26610…+2pin

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

cos(θ)= 3/10

cos (θ) = \frac{3}{10}

θ = 1.26610 \dots + 2 πn, θ = 2 π - 1.26610 \dots + 2 πn

Solution steps

cos (θ) = \frac{3}{10}

Apply trig inverse properties

θ = arccos (\frac{3}{10}) + 2 πn, θ = 2 π - arccos (\frac{3}{10}) + 2 πn

Show solutions in decimal form

θ = 1.26610 \dots + 2 πn, θ = 2 π - 1.26610 \dots + 2 πn

27 tan^{2} (x) - 9 = 0

tan (x) = \frac{8}{17}

sin (x - 9 0^{\circ}) = cos (x)

cos (x) = \frac{67}{77}

(sin (x) + cos (x))^{2} = \frac{1 + 2 sin ( x )}{sec ( x )}

What is the general solution for cos(θ)= 3/10 ?
The general solution for cos(θ)= 3/10 is θ=1.26610…+2pin,θ=2pi-1.26610…+2pin