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Popular >

cos(x)= 4/(sqrt(3.38^2+4^2))

Solution

cos (x) = \frac{4}{3.3 8 ^{2} + 4 ^{2}}

Solution

x = 0.70158 \dots + 2 πn, x = 2 π - 0.70158 \dots + 2 πn

+1

Solution steps

cos (x) = \frac{4}{3.3 8 ^{2} + 4 ^{2}}

Simplify

\frac{4}{3.3 8 ^{2} + 4 ^{2}} : \frac{4 27.4244}{27.4244}

Apply trig inverse properties

x = arccos (\frac{4 27.4244}{27.4244}) + 2 πn, x = 2 π - arccos (\frac{4 27.4244}{27.4244}) + 2 πn

Show solutions in decimal form

x = 0.70158 \dots + 2 πn, x = 2 π - 0.70158 \dots + 2 πn

Popular Examples

solvefor x,y= 1/pi arctan(x/s)+1/2 solve for

x, y = \frac{1}{π} arctan (\frac{x}{s}) + \frac{1}{2}

tan^2(θ)+8tan(θ)+6=0

tan^{2} (θ) + 8 tan (θ) + 6 = 0

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sin(x)+sin(2x)=0,0<= x<= 2pi

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

8sin(2x)=16cos(x)

8 sin (2 x) = 16 cos (x)

Frequently Asked Questions (FAQ)

What is the general solution for cos(x)= 4/(sqrt(3.38^2+4^2)) ?
The general solution for cos(x)= 4/(sqrt(3.38^2+4^2)) is x=0.70158…+2pin,x=2pi-0.70158…+2pin