What is the general solution for cos(φ)=0.71 ?

The general solution for cos(φ)=0.71 is φ=0.78129…+2pin,φ=2pi-0.78129…+2pin

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cos(φ)=0.71

cos (φ) = 0.71

φ = 0.78129 \dots + 2 πn, φ = 2 π - 0.78129 \dots + 2 πn

Degrees

φ = 44.76508 \dots^{\circ} + 36 0^{\circ} n, φ = 315.23491 \dots^{\circ} + 36 0^{\circ} n

Solution steps

cos (φ) = 0.71

Apply trig inverse properties

cos (φ) = 0.71

General solutions for

cos (φ) = 0.71

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

φ = arccos (0.71) + 2 πn, φ = 2 π - arccos (0.71) + 2 πn

φ = arccos (0.71) + 2 πn, φ = 2 π - arccos (0.71) + 2 πn

Show solutions in decimal form

φ = 0.78129 \dots + 2 πn, φ = 2 π - 0.78129 \dots + 2 πn

sin (θ) + 1 = 1

7 sin (x) cos (x) + 3 cos (x) = 0

tan (x) = \frac{6}{5}

2 csc^{2} (x) + csc (x) = 2

cos (x) tan^{2} (x) = 3 cos (x)

What is the general solution for cos(φ)=0.71 ?
The general solution for cos(φ)=0.71 is φ=0.78129…+2pin,φ=2pi-0.78129…+2pin