а) y' = 2 + \frac{3}{1+(3x)^2} = 2 + \frac{3}{1+9x^2}
б) y = (3x-4)^2 tg(x)y' = 2(3x-4) tg(x) + (3x-4)^2 \cdot sec^2(x)y' = 6x tg(x) - 8 tg(x) + (3x-4)^2 \cdot sec^2(x)
а) y' = 2 + \frac{3}{1+(3x)^2} = 2 + \frac{3}{1+9x^2}
б) y = (3x-4)^2 tg(x)
y' = 2(3x-4) tg(x) + (3x-4)^2 \cdot sec^2(x)
y' = 6x tg(x) - 8 tg(x) + (3x-4)^2 \cdot sec^2(x)