What is the general solution for cos(u)=-24/25 ?

The general solution for cos(u)=-24/25 is u=2.85779…+2pin,u=-2.85779…+2pin

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cos(u)=-24/25

cos (u) = - \frac{24}{25}

u = 2.85779 \dots + 2 πn, u = - 2.85779 \dots + 2 πn

Solution steps

cos (u) = - \frac{24}{25}

Apply trig inverse properties

u = arccos (- \frac{24}{25}) + 2 πn, u = - arccos (- \frac{24}{25}) + 2 πn

Show solutions in decimal form

u = 2.85779 \dots + 2 πn, u = - 2.85779 \dots + 2 πn

4 sin (y) = \frac{1}{cos ( y )}

2 cos (x) sin (x) = sin (x)

2 cos (θ) = 2 sin (θ)

arcsin (x) = \frac{π}{8}

5 tan (x) = 8

What is the general solution for cos(u)=-24/25 ?
The general solution for cos(u)=-24/25 is u=2.85779…+2pin,u=-2.85779…+2pin