An angle in a semicircle is
A chord of length 16 cm is drawn in a circle of radius 10 cm. The distance of the chord from the centre of the circle is
If pq (p+q) = 1, Then the value of 1/p3q3 -p3-q3 is equal to
If x2 + 1/x2 = 2, then the value of x - 1/x is
The price of an article is decreased by 10%. To restore it to its former value, the new price must be increased by :
A T.V was sold at a profit of 5% If it had been sold at a profit of 10% , the profit would have been Rs. 1000 more. What is its cost price