If a+1a=1, then the value of a2-a+1a2+a+1 is a≠0
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The least number that must be substracted from 63520 to make the result a perfect square is
Find the number of prime factor of 20790.
The perimeter and the breadth of a rectangle are 44 cm and 10 cm respectively. Find its area (in cm2).
A solid sphere and a solid hemisphere have the same total surface area. The ratio of their volumes is (Take, π=22/7)
ABCD is a trapezium in which AB is parallel to CD and AB = 4(CD). The diagonals of the trapezium intersects at O. What is the ratio of area of triangle DCO to the area of the triangle ABO?
Expand : S + 23
For what value of X, 211X will be a perfect square?