Quantitative Aptitude - Arithmetic Ability Questions

In a triangle the length of the side opposite the right angle is 6 cm, what is the length of the side opposite to the angle which measures 30°?

If (a+1a)2=3,then the value of a6-1a6 will be

The least six digit number which is a perfect square is

Find the greatest four digit number when divided by 8, 12, 16 leaves 2 as remainder in every case?

AD is the Median of Δ ABC. If O is the centroid and AO = 10 cm then OD is

If sin = 2/3, find the value of secθ and cotθ

Which of the following can't be the unit's digit of a perfect square?

Which of the following numbers is not a prime number?