Quantitative Aptitude - Arithmetic Ability Questions

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

In the following question, select the odd word from the given alternatives.

What is the value of {[sin (x + y) – 2 sin x + sin (x – y)]/[cos (x – y) + cos (x + y) – 2 cos x]} × [(sin 10x – sin 8x)/(cos 10x + cos 8x)]?

If [a + (1/a)]2 – 2[a – (1/a)] = 12, then which of the following is a value of 'a'?

If x - y = -8 and xy = 45, then (x2 + y2) is

3cosA is equal to

The vertical angle A of an isosceles triangle ΔABC is three times the angle B of it. The measure of the angle A is

What is the simplified value of (cos A + sin A)(cot A + tan A)?