What is the general solution for cos(x)= 17/28 ?

The general solution for cos(x)= 17/28 is x=0.91833…+2pin,x=2pi-0.91833…+2pin

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cos(x)= 17/28

cos (x) = \frac{17}{28}

x = 0.91833 \dots + 2 πn, x = 2 π - 0.91833 \dots + 2 πn

Solution steps

cos (x) = \frac{17}{28}

Apply trig inverse properties

x = arccos (\frac{17}{28}) + 2 πn, x = 2 π - arccos (\frac{17}{28}) + 2 πn

Show solutions in decimal form

x = 0.91833 \dots + 2 πn, x = 2 π - 0.91833 \dots + 2 πn

sec^{4} (x) - 4 sec^{2} (x) = 0

\frac{cos ( x )}{sec ( x )} - \frac{sin ( x )}{csc ( x )} = 1

tan (x) = \frac{12}{35}

4 = sec (θ)

1 + 2 sin (x) = cos (2 x)

What is the general solution for cos(x)= 17/28 ?
The general solution for cos(x)= 17/28 is x=0.91833…+2pin,x=2pi-0.91833…+2pin