Problem - 4619
Compute $$\int\frac{1}{\sqrt{x^2+4x+5}}dx$$
$$\int\frac{1}{\sqrt{x^2+4x+5}}dx=\int\frac{1}{\sqrt{(x+2)^2+1}}dx=\boxed{\ln|(x+2)+ \sqrt{(x+2)^2+1}|+C}$$
The last step uses the result of # 4618.
Compute $$\int\frac{1}{\sqrt{x^2+4x+5}}dx$$
$$\int\frac{1}{\sqrt{x^2+4x+5}}dx=\int\frac{1}{\sqrt{(x+2)^2+1}}dx=\boxed{\ln|(x+2)+ \sqrt{(x+2)^2+1}|+C}$$
The last step uses the result of # 4618.