What is the general solution for cos(x)= 4/14 ?

The general solution for cos(x)= 4/14 is x=1.28104…+2pin,x=2pi-1.28104…+2pin

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

cos(x)= 4/14

cos (x) = \frac{4}{14}

x = 1.28104 \dots + 2 πn, x = 2 π - 1.28104 \dots + 2 πn

Solution steps

cos (x) = \frac{4}{14}

Cancel the common factor:

2

cos (x) = \frac{2}{7}

Apply trig inverse properties

x = arccos (\frac{2}{7}) + 2 πn, x = 2 π - arccos (\frac{2}{7}) + 2 πn

Show solutions in decimal form

x = 1.28104 \dots + 2 πn, x = 2 π - 1.28104 \dots + 2 πn

\frac{sin ( 57.2 2 ^{\circ} )}{31.5} = \frac{sin ( θ )}{24.4}

tan^{2} (b) sin^{2} (b) = tan^{2} (b) + sin^{2} (b)

cos (2 θ) = \frac{3}{2}, 0 \leq θ < 2 π

7.5 sin (x) = 3.4 cos (x)

sec (θ) = 8, tan (θ) = 37

What is the general solution for cos(x)= 4/14 ?
The general solution for cos(x)= 4/14 is x=1.28104…+2pin,x=2pi-1.28104…+2pin