solve limit x--->0+ (( sqrt (x^2+2x)- sqrt (x))/( tan (4x))
Here is the answer but I don't know how to do it.
https://www.wolframalpha.com/input/?i2d=true&i=+lim+as+x+tends+to+0++%5C%2840%29Divide%5BSqrt%5BPower%5Bx%2C2%5D%2B2x%5D-Sqrt%5Bx%5D%2C%5C%2840%29tan%5C%2840%294x%5C%2841%29%5C%2841%29%5D%5C%2841%29
