Question 1028762
2×sin((pi/4)×x) = 1

Sin((pi/4)×x) = 1/2

(Pi/4)×x = pi/6 + 2×m×pi or (pi/4)×x = 5×pi/6 + 2×n×pi.

X/4 =1/6 + 2xm or ×/4 =5/6 + 2×n

x = 2/3 + 8×m or x =10/3 +8×n, where m,n are arbitrary integers.