What is the general solution for cos(θ)= 14/16 ?

The general solution for cos(θ)= 14/16 is θ=0.50536…+2pin,θ=2pi-0.50536…+2pin

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cos(θ)= 14/16

cos (θ) = \frac{14}{16}

θ = 0.50536 \dots + 2 πn, θ = 2 π - 0.50536 \dots + 2 πn

Solution steps

cos (θ) = \frac{14}{16}

Cancel the common factor:

2

cos (θ) = \frac{7}{8}

Apply trig inverse properties

θ = arccos (\frac{7}{8}) + 2 πn, θ = 2 π - arccos (\frac{7}{8}) + 2 πn

Show solutions in decimal form

θ = 0.50536 \dots + 2 πn, θ = 2 π - 0.50536 \dots + 2 πn

2 sec (x^{2}) + tan (x^{2}) - 3 = 0

5 + cos^{2} (θ) - 6 cos (θ) = 0

tan (2 c) = - tan (x)

2 sin (x) cos (x) = sin^{2} (x)

sin (θ) - 0.1 cos (θ) = \frac{8.87}{9.8}

What is the general solution for cos(θ)= 14/16 ?
The general solution for cos(θ)= 14/16 is θ=0.50536…+2pin,θ=2pi-0.50536…+2pin