1-[5-{2+(-5+6-2)2}] is equal to 

Find the value of given expression. 

[76 – {90 ÷ 5 ⨯ (24 – 36 ÷ 3) ÷ 3}] 

If $$ {3\sqrt{{1-a}\over{a}}}+9={19-3\sqrt{{a}\over{1-a}}}$$, then what is the value of a?

3x² = 36 then what is the value of x?

If  $$\sqrt{2}=1.414$$, the value of $${ \sqrt{2}-1\over\sqrt{2}+1}$$  is nearest to 

If 1.5 a=0.04 b then $$ {b-a\over b+a}$$.

By what least number should 4320 be multiplied so as to obtain a number which is perfect cube? 

On simplification of   $$ {(2.664)^2-(2.356)^2\over0.288}$$