Question

Please answer this question from my mathematics assignment.

Answer 1

Answer: This should be easy......

-$(\sqrt{28} /\sqrt{343} )$ can be written as

$-\sqrt{28/343}$  ..... Simplify the fraction. You will get

$-\sqrt{4/49}$.

Squareroot of 4 and 49 is 2 and 7 respectively. so, You will get

-(2/7), Which is an rational number.

∴option (d) is correct.

HOPE IT HELPS :D