Задача 3262 sin(Pi/2+Pi/4) = sqrt(3/2) ...

vikylaandreeva9

24.06.2015

sin(Pi/2+Pi/4) = sqrt(3/2)

Гость

09.07.2015

sin(pi*x/2 + pi/4) = √3/2
pi*x1/2 + pi/4 = pi/3 + 2pi*k
x1/2 = 1/3 - 1/4 + 2k = 1/12 + 2k
x1 = 1/6 + 4k

pi*x2/2 + pi/4 = 2pi/3 + 2pi*k
x2/2 = 2/3 - 1/4 + 2k = 5/12 + 2k
x2 = 5/6 + 4k