What is the general solution for cos(α)= 7/11 ?

The general solution for cos(α)= 7/11 is α=0.88102…+2pin,α=2pi-0.88102…+2pin

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cos(α)= 7/11

cos (α) = \frac{7}{11}

α = 0.88102 \dots + 2 πn, α = 2 π - 0.88102 \dots + 2 πn

Solution steps

cos (α) = \frac{7}{11}

Apply trig inverse properties

α = arccos (\frac{7}{11}) + 2 πn, α = 2 π - arccos (\frac{7}{11}) + 2 πn

Show solutions in decimal form

α = 0.88102 \dots + 2 πn, α = 2 π - 0.88102 \dots + 2 πn

x, m^{2} - m - 2 = sin (x)

2 sin^{2} (x) = sin (x) + 3, 0 \leq x \leq 2 π

- 15 sin (3 x) = 0

sin (θ) = - \frac{5}{3} cos (2 θ)

y, e^{c o s (x)} (1 - cos (y)) = c

What is the general solution for cos(α)= 7/11 ?
The general solution for cos(α)= 7/11 is α=0.88102…+2pin,α=2pi-0.88102…+2pin