Two concentric circle are of radius 5cm and 3cm . Find the length of the chord of the larger circle which touches the smaller circle
Cos inverse (1-a square/1+a square)+cos inverse (1-b square/1+b square)
What are redeemable [reference shares? Discuss the different methods of redeeming the redeemable preference shares
how many 3 digit positive number may be formed so that the sum of the digits is 6