What is the general solution for cos(θ)=-0.73 ?

The general solution for cos(θ)=-0.73 is θ=2.38911…+2pin,θ=-2.38911…+2pin

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cos(θ)=-0.73

cos (θ) = - 0.73

θ = 2.38911 \dots + 2 πn, θ = - 2.38911 \dots + 2 πn

Degrees

θ = 136.88639 \dots^{\circ} + 36 0^{\circ} n, θ = - 136.88639 \dots^{\circ} + 36 0^{\circ} n

Solution steps

cos (θ) = - 0.73

Apply trig inverse properties

cos (θ) = - 0.73

General solutions for

cos (θ) = - 0.73

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

θ = arccos (- 0.73) + 2 πn, θ = - arccos (- 0.73) + 2 πn

θ = arccos (- 0.73) + 2 πn, θ = - arccos (- 0.73) + 2 πn

Show solutions in decimal form

θ = 2.38911 \dots + 2 πn, θ = - 2.38911 \dots + 2 πn

csc (θ) = - 3

4 cos (x) - 2 = 2 tan (x) cot (x) - sec (x)

11 (1 - cos (θ)) = sin^{2} (θ)

cos^{2} (x) - \frac{1}{2} = 0, 0 \leq x \leq 2 π

x, tan (x) = tan (y)

What is the general solution for cos(θ)=-0.73 ?
The general solution for cos(θ)=-0.73 is θ=2.38911…+2pin,θ=-2.38911…+2pin