What is the general solution for cos(x)= 8/15 ?

The general solution for cos(x)= 8/15 is x=1.00826…+2pin,x=2pi-1.00826…+2pin

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cos(x)= 8/15

cos (x) = \frac{8}{15}

x = 1.00826 \dots + 2 πn, x = 2 π - 1.00826 \dots + 2 πn

Degrees

x = 57.76904 \dots^{\circ} + 36 0^{\circ} n, x = 302.23095 \dots^{\circ} + 36 0^{\circ} n

Solution steps

cos (x) = \frac{8}{15}

Apply trig inverse properties

cos (x) = \frac{8}{15}

General solutions for

cos (x) = \frac{8}{15}

cos (x) = a \Rightarrow x = arccos (a) + 2 πn, x = 2 π - arccos (a) + 2 πn

x = arccos (\frac{8}{15}) + 2 πn, x = 2 π - arccos (\frac{8}{15}) + 2 πn

x = arccos (\frac{8}{15}) + 2 πn, x = 2 π - arccos (\frac{8}{15}) + 2 πn

Show solutions in decimal form

x = 1.00826 \dots + 2 πn, x = 2 π - 1.00826 \dots + 2 πn

sin (4 k - 22) = cos (6 k - 13)

cos (2 x) csc^{2} (x) = 2 cos (2 x)

2 tan (x) sin (x) = 3 tan (x)

tan^{3} (2 x) - tan^{2} (2 x) - tan (2 x) + 1 = 0

tan (x) = - 2 + 1

What is the general solution for cos(x)= 8/15 ?
The general solution for cos(x)= 8/15 is x=1.00826…+2pin,x=2pi-1.00826…+2pin