The value of 2 Tan53°Cot37°-Cot80°Tan10° ?

θ is a positive acute angle and sinθ ­ cosθ = 0, then the value of secθ + cosecθ is

O is the centre of the circle and ∠AOB = 150°, and the shaded portion is x part of the circular region, then x = ?

In a triangle, the distance of the centroid from the three vertices is 4cm, 6cm and 8cm respectively. Then the length of the smallest median is:

If a = √2 + 1, b = √2 - 1 then the value of 1a+1+1b+1 ?

If 1aa2+1 = 3, then the value of a6+1a3 is

The average marks obtained in a class of 50 students is 70%. The average of first 25 is 60% and that of 24 is 80%. What is the marks obtained by the last student?

A and B can do a piece of work in 72 days. B and C can do it in 120 days and A and C can do it in 90 days. A alone can do it in: