1) F(x) = 1/2*4√(2x + 1) + C
F(x) = 2√(2x + 1) + C
5 = 2√(2*4 +1) + C
5 = 6 + C
C = -1
Ответ:F(x) = 1/2*4√(2x + 1) -1
2) F(x) = -Cos(x - π/4) + C
2 = - Cos(3π/2 - π/4) + С
2 = -Сos5π/4 + C
2 = Sinπ/4 + C
2 = √2/2 + C
C = 2 - √2/2
Ответ:F(x) = -Cos(x - π/4) + 2 - √2/2