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Find the ratio of total surface area of a sphere and a solid hemisphere of same radius.
find the probability of getting a non prime number if a die is thrown once
Find domain and range of the real function f defined by f(x)=√25-x^2
Draw a pair of tangent to a circle of radius 5cm which inclined to each other at an angle 60 degree
Find total number of one one function from set A to A if A={1,2,3,4}