Quantitative Aptitude - Arithmetic Ability Questions

The value of the expression 2(sin6θ+cos6θ) - 3(sin4θ+cos4θ) + 1 is

If x2 – 4x + 1 = 0, then what is the value of x9 + x7 – 194x5 – 194x3?

What is the value of √[(1 + sinA)/(1 -­ sinA)]?

If a3 + 3a2 + 9a = 1, then what is the value of a3 + (3/a)?

If secA/√(sec2A ­- 1) = x, then value of x is

If cos 135° = x, then the value of x is

If 1 dupatta is offered free on purchase of 4 dupattas priced Rs 1300 each what is the effective discount on each dupatta?

The HCF and LCM of two numbers are 3 and 2730 respectively. If one of the numbers is 78, find the other number.