" 74.If "(a+(1)/(a))^(2)=3" ,then "a^(3)+(1)/(a^(3))" equals "

if (a+(1)/(a))^(2)=3 then a^(3)+(1)/(a^(3)) equals to

If (a+(1)/(a))^(2)=9 , then a^(3)+(1)/(a^(3)) equals

If x gt (1)/sqrt(3) then tan^(-1) (3x-x^(3))/(1-3x^(2)) equals

If x lt -(1)/sqrt(3) , then tan^(-1)(3x-x^(3))/(1-3x^(2)) equals

The sum of the infinite series (1)/(2) ((1)/(3) + (1)/(4)) - (1)/(4)((1)/(3^(2)) + (1)/(4^(2))) + (1)/(6) ((1)/(3^(3)) + (1)/(4^(3))) - ...is equal to

3(1)/(5)+1(2)/(3) is equal to

If z_(1),z_(2),z_(3) are three complex numbers, such that |z_(1)|=|z_(2)|=|z_(3)|=1 & z_(1)^(2)+z_(2)^(2)+z_(3)^(2)=0 then |z_(1)^(3)+z_(2)^(3)+z_(3)^(3)| is equal to _______. (not equal to 1)