Quantitative Aptitude - Arithmetic Ability Questions

2 ­- (cosA + sinA)2 is equal to

The line passing through the point (5,a) and point (4,3) is perpendicular to the line x - 6y = 8. What is the value of 'a'?

If Tan A = 15/8 and Tan B = 7/24, then Cos(A - B) = ?

129 meter from the foot of a cliff on level of ground, the angle of elevation of the top of a cliff is 30°. The height of this cliff is

A balloon leaves from a point P rises at a uniform speed. After 6 minutes, an observer situated at a distance of 450√3 metres from point P observes that angle of elevation of the balloon is 60 deg. Assume that point of observation and point P are on the same level. What is the speed (in m/s) of the balloon?

If x + 1x = 3, then x18 + x12 + x6 + 1 value is

Find the odd word/letters/number from the given alternatives.

What is the equation of the line passing through the point (2,-3) and making an angle of -45°with the positive X-axis?