Quantitative Aptitude - Arithmetic Ability Questions

If sin8 θ + cos8 θ – 1 = 0, then what is the value of cos2 θ sin2 θ (If θ ≠ 0 or π/2)?

The prices of chairs and tables are in the ratio of 9 : 5. If the chairs cost Rs. 4200 more than the tables, find the price of the tables? (in Rs.)

The measures of the four angles of a quadilateral are in the ratio 3:4:5:6. What is the measure of the biggest angle?

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

What is the value of sin(11π/6)?

What is the area (in sq cm) of a regular hexagon of side 9 cm?

If a + b = 1 and ab = -6, then what is the value of a3+ b3?

The value of -261+(-380)-(-521)+821-(-121)