Уравнение касательной: y= f(x0) + f'(x0)*(x-x0) f(x0) = f(1) = 1 + 5 - 3 = 3 f'(x ) = 2x + 5 f'(x0) = f'(1) = 7 y = 3 + 7*(x-1) = 7x-4.
Уравнение касательной: y= f(x0) + f'(x0)*(x-x0) f(x0) = f(1) = 1 + 5 - 3 = 3 f'(x ) = 2x + 5 f'(x0) = f'(1) = 7 y = 3 + 7*(x-1) = 7x-4.