Question

Find the value of 3/√5+√2 + 7/√5-√2. if √5= 2.236 and √2= 1.414.

Answer 1

=3/√5+√2 +7/√5-√2
=3(√5-√2)/ (√5)² -(√2)² + 7(√5+√2)/ (√5)²-(√2)²
=3√5-3√2/ 5-2 +7√5+7√2/5-2
=3√5-3√2/3 + 7√5 + 7√2/3
=3√5-3√2 + 7√5+7√2/3 [whole divided by 3]
=10√5+4√2/3 [whole divided by 3]
=10 x 2.236 + 4 x 1.414 /3[whole divided by 3]
=22.36 + 5.656 /3
=28.016 /3
=28016/ 3 x 1000
=7004/3 x 250
=7004/750
=9.3386
hope it helps you..