Which one is correct? 1) We made or we have made? 2) I made or I have made? 3) I prepared or I have prepared? I am confused. Which one is correct?
In all three examples, both sentences are grammatically correct. In all three examples, both sentences have different meanings. To use them correctly, you will have to learn the tenses.“We made” is in the simple past tense. It is used to describe a past action.“We have made” is in the present perfect tense. It is used to describe a current fact concerning an action completed in the past.So, the tenses are very close in meaning! The difference is in emphasis.Let’s imagine that yesterday, you and your sister prepared baingan bharta for dinner.If you wanted to tell what you did, you would use the simple past:What did you do yesterday? “Yesterday, we made baingan bharta.”What food did you make yesterday? “Yesterday, we made baingan bharta.”If you wanted to communicate the fact that this is something you had done earlier, or finished doing earlier, you would use the present perfect tense.I would like to teach you how to make baingan bharta. “But we have made baingan bharta before.”What dishes do you know how to cook? “We have made baingan bharta and chicken korma.”
What is the correct answer of [6/2(2+1)], 1 or 9?
Let's analyse this problem as it is originally written.[6÷2(2+1)]BODMAS Convention (Mathematical/scientific calculators):Solve Brackets (box)6÷2(2+1)Solve Brackets (round)6÷2(3)Divide6÷6Answer1Standard left-to-right reads (computing devices)3(2+1)(3*2)+(3*1)(6)+(3)9Having said that, it is important to note the difference between 2(3) and 2*3 (or 2 x 3).2(3) is a single factor since there is no operator separating the two numbers, which binds them more tightly. A hidden operator binds strongly than an expressed operator.2*3 is NOT a single factor, and rather a set of two factors bound by an operator.The BODMAS convention follows the order of operations as follows :Solve Brackets (box, then curly, then round)Solve the orders of operation (roots, powers, etc.)Division (/ or ÷)Multiplication (* or x)AdditionSubtractionDue to absence of correctly used parenthesis, the problem is devised in a, more likely, ambiguous manner. Following can be better notations :(6/2)(1+2)6/[2(1+2)]On a Casio fx-991EX scientific calculator (courtesy and images by @Rashi Chawla), when one enters the problem in its original form :it returns answer as 1, with the change of problem notation, in accordance with BODMAS convention :For a more comprehensive note, you may want to read the following answers too :Peter Vanroose's answer to What is the correct answer of [6/2(2+1)], 1 or 9?Gábor Schermann's answer to What is the correct answer of [6/2(2+1)], 1 or 9?Atul Sinha's answer to What is the correct answer of [6/2(2+1)], 1 or 9?