Evaluate integral √a²-x²
Evaluate integral √a²-x²
Mrs Wong had some soy sauce. She used the same amount of soy sauce each day. At the end of the 5th day, she was lef with 2/5 of how much she had at first. At the end of the 8th day, she was left with 8 ml of soy sauce. How much soy sauce did she have at first?