16^cos(x)-10*4^cos(x)+16=0 sqrt(y)+2*sin(x)=0

___
/ y + 2*sin(x) = 0

5.23598775598299

$$y_{1} = 3$$
=
$$3$$
=

3

6.28318530717959 – 0.962423650119207*i

$$y_{2} = -5$$
=
$$-5$$
=

-5

4.81973039394391 + 2.2219810370406*i

$$y_{3} = 3 + frac{4 pi^{2}}{log^{2}{left (2 right )}} – frac{4 i pi}{log{left (2 right )}}$$
=
$$3 + frac{4 pi^{2}}{log^{2}{left (2 right )}} – frac{4 i pi}{log{left (2 right )}}$$
=

85.1691538208953 – 18.1294405673088*i

5.02562131330305 + 2.26510792957578*i

$$y_{4} = -5 + frac{4 pi^{2}}{log^{2}{left (2 right )}} – frac{12 i pi}{log{left (2 right )}}$$
=
$$-5 + frac{4 pi^{2}}{log^{2}{left (2 right )}} – frac{12 i pi}{log{left (2 right )}}$$
=

77.1691538208953 – 54.3883217019263*i

x1 = 5.235987755982989
y1 = 3.0 + 9.999220682629593e-32*i

x2 = 5.235987755982989
y2 = 3.00000000000000

x3 = -13.61356816555577
y3 = 3.0 – 7.600521690690768e-35*i

x4 = -1.047197551196598
y4 = 3.0 + 3.647640330752703e-33*i

x5 = -13.61356816555577
y5 = 3.0 + 1.133034820798045e-30*i

x6 = -1.047197551196598
y6 = 3.0 – 5.467842257900616e-32*i

x7 = -13.61356816555577
y7 = 3.0 + 5.547475649330015e-21*i

x8 = -1.047197551196598
y8 = 3.0 – 5.919169420073796e-32*i

x9 = -1.047197551196598
y9 = 3.00000000000000

x10 = -13.61356816555577
y10 = 3.0 + 7.249702368819063e-22*i

x11 = -13.61356816555577
y11 = 3.0 + 1.610594862989896e-32*i

x12 = -13.61356816555577
y12 = 3.0 + 7.049047554159069e-28*i