What is the general solution for 5cos(x)-4=0 ?

The general solution for 5cos(x)-4=0 is x=0.64350…+2pin,x=2pi-0.64350…+2pin

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

5cos(x)-4=0

5 cos (x) - 4 = 0

x = 0.64350 \dots + 2 πn, x = 2 π - 0.64350 \dots + 2 πn

Solution steps

5 cos (x) - 4 = 0

Move

4

to the right side

5 cos (x) = 4

Divide both sides by

5

cos (x) = \frac{4}{5}

Apply trig inverse properties

x = arccos (\frac{4}{5}) + 2 πn, x = 2 π - arccos (\frac{4}{5}) + 2 πn

Show solutions in decimal form

x = 0.64350 \dots + 2 πn, x = 2 π - 0.64350 \dots + 2 πn

2 + 2 cos (x) = 2 - 2 sin (x)

sin (x) = 14

tan (x) = 0, 5

2 sec^{2} (x) - 5 sec (x) + 2 = 0, 0^{\circ} \leq x \leq 36 0^{\circ}

2 sin (5 x) + 3 = 0, 0 \leq x \leq 2 π

What is the general solution for 5cos(x)-4=0 ?
The general solution for 5cos(x)-4=0 is x=0.64350…+2pin,x=2pi-0.64350…+2pin