What is the general solution for cos(t)=-3/5 ?

The general solution for cos(t)=-3/5 is t=2.21429…+2pin,t=-2.21429…+2pin

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cos(t)=-3/5

cos (t) = - \frac{3}{5}

t = 2.21429 \dots + 2 πn, t = - 2.21429 \dots + 2 πn

Solution steps

cos (t) = - \frac{3}{5}

Apply trig inverse properties

t = arccos (- \frac{3}{5}) + 2 πn, t = - arccos (- \frac{3}{5}) + 2 πn

Show solutions in decimal form

t = 2.21429 \dots + 2 πn, t = - 2.21429 \dots + 2 πn

2 - sin (θ) = 3 sin (θ)

- cos (\frac{x}{2}) + sin (\frac{x}{2}) = \frac{2}{5}

\frac{35}{sin ( 9 0 ^{\circ} )} = \frac{27}{sin ( y )}

4 cos^{2} (x) + 2 cos (x) - 22 cos (x) = 2

sin (x + 2 0^{\circ}) \cdot csc (7 0^{\circ}) = 1

What is the general solution for cos(t)=-3/5 ?
The general solution for cos(t)=-3/5 is t=2.21429…+2pin,t=-2.21429…+2pin