What is the general solution for cos(x)=(1.2)/(1.4) ?

The general solution for cos(x)=(1.2)/(1.4) is x=0.54109…+2pin,x=2pi-0.54109…+2pin

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cos(x)=(1.2)/(1.4)

cos (x) = \frac{1.2}{1.4}

x = 0.54109 \dots + 2 πn, x = 2 π - 0.54109 \dots + 2 πn

Degrees

x = 31.00271 \dots^{\circ} + 36 0^{\circ} n, x = 328.99728 \dots^{\circ} + 36 0^{\circ} n

Solution steps

cos (x) = \frac{1.2}{1.4}

Apply trig inverse properties

cos (x) = \frac{1.2}{1.4}

General solutions for

cos (x) = \frac{1.2}{1.4}

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

x = arccos (\frac{1.2}{1.4}) + 2 πn, x = 2 π - arccos (\frac{1.2}{1.4}) + 2 πn

x = arccos (\frac{1.2}{1.4}) + 2 πn, x = 2 π - arccos (\frac{1.2}{1.4}) + 2 πn

Show solutions in decimal form

x = 0.54109 \dots + 2 πn, x = 2 π - 0.54109 \dots + 2 πn

θ, cos (θ) + cos (9 0^{\circ} - θ) = 0

sin (A) - 0.6 \cdot cos (A) = \frac{2.77}{9.8}

sin (x) = - 0.397

\frac{2 tan ( x )}{1 - tan ^{2} ( x )} = 1

2 cos (x) \cdot tan (x) - 1 = 0

What is the general solution for cos(x)=(1.2)/(1.4) ?
The general solution for cos(x)=(1.2)/(1.4) is x=0.54109…+2pin,x=2pi-0.54109…+2pin