Question

find the value of √5 correct to 2 decimal places; then use it to find square root of 3-√5/3+√5 correct to 2significant digits​

Answer 1

√5=2.2360=2.24

hence 3-√5=3-2.24=0.76 and 3+√5=3+2.24=5.24

hence 3-√5/3+√5=0.76/5.24=0.1450=0.14