What is the general solution for cos(a)= 12/37 ?

The general solution for cos(a)= 12/37 is a=1.24049…+2pin,a=2pi-1.24049…+2pin

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cos(a)= 12/37

cos (a) = \frac{12}{37}

a = 1.24049 \dots + 2 πn, a = 2 π - 1.24049 \dots + 2 πn

Solution steps

cos (a) = \frac{12}{37}

Apply trig inverse properties

a = arccos (\frac{12}{37}) + 2 πn, a = 2 π - arccos (\frac{12}{37}) + 2 πn

Show solutions in decimal form

a = 1.24049 \dots + 2 πn, a = 2 π - 1.24049 \dots + 2 πn

120 sin (x - 12 0^{\circ}) = 120 sin (x - 24 0^{\circ})

sin^{2} (x) = 1 - sin^{2} (x)

- 8 cos (θ) = 43

2 sin (3 a) = - 1

sin (b) = 12 (\frac{sin ( 4 2 ^{\circ} )}{22})

What is the general solution for cos(a)= 12/37 ?
The general solution for cos(a)= 12/37 is a=1.24049…+2pin,a=2pi-1.24049…+2pin