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    				| 1. | From the details given below, find out the credit sales and total sales. Opening debtors Closing debtors Discount allowed Sales returns Irrecoverable amount Bills receivables received Bills receivable dishonoured Cheque dishonoured Cash sales Cash received from debtors Cheque received from debtors 45,000 56.000 2.500 8,500 4,000 12,000 3,000 7.700 80,000 2,30,000 25,000 | 
| Answer» A function F of two variables is said to have a relative MAXIMUM (MINIMUM) at a point (a, b) if there is a disc centr | |