The value of √2 in correct significant digits is :
Find the value of sqrt5 correct to 2 decimal places; then use it to find the square root of 3−√53+√5 correct to 2 significant digits.
Find the square root of 7.832 correct to :
(i) 2 decimal places
(ii) 2 significant digits.
Find the square root of 7 correct to two decimal places; then use it to find the value of
√4+√74+√7 correct to three significant digits.