Quantitative Aptitude - Arithmetic Ability Questions

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

If √(1+tan2A) = x, then the value of x is

If the amount received at the end of 2nd and 3rd year at Compound Interest on a certain Principal is Rs 1,800, and Rs 1,926 respectively, what is the rate of interest?

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)]?

What is the HCF of 36, 72 and 126?

Given: 6x + 2(6-x) > 2x -2 < 5x/2 - 3x/4; then x can take which of the following values?