What is the general solution for -3=39.6862600000000…cos(x) ?

The general solution for -3=39.6862600000000…cos(x) is x=1.64646…+2pin,x=-1.64646…+2pin

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

-3=39.6862600000000…cos(x)

- 3 = 39.6862600000000 \dots cos (x)

x = 1.64646 \dots + 2 πn, x = - 1.64646 \dots + 2 πn

Solution steps

- 3 = 39.68626 \dots cos (x)

Switch sides

39.68626 \dots cos (x) = - 3

Divide both sides by

39.68626 \dots

cos (x) = - 0.07559 \dots

Apply trig inverse properties

x = arccos (- 0.07559 \dots) + 2 πn, x = - arccos (- 0.07559 \dots) + 2 πn

Show solutions in decimal form

x = 1.64646 \dots + 2 πn, x = - 1.64646 \dots + 2 πn

1 + cos (θ) = - cos (θ)

2 cos^{2} (x) - cos (- x) - 1 = 0

3 sec^{2} (u) + 7 tan (u) = 3

3 sin (t) = 2 cos^{2} (t)

sin (θ) = \frac{12 sin ( 4 3 ^{\circ} )}{9}

What is the general solution for -3=39.6862600000000…cos(x) ?
The general solution for -3=39.6862600000000…cos(x) is x=1.64646…+2pin,x=-1.64646…+2pin