However, what would be a good approximation of 4.001 = 4 + .001 {\displaystyle {\sqrt {4.001}}={\sqrt {4+.001}}} ?
Однак, що буде хорошим наближенням для 4.001 = 4 + .001 {\displaystyle {\sqrt {4.001}}={\sqrt {4+.001}}} ?