Web Reference: Dec 25, 2019 · Get answers to all exercises of Chapter 1: Python Revision Tour Sumita Arora Computer Science with Python CBSE Class 12 book. Clear your computer doubts instantly & get more marks in computers exam easily. In Python, exponentiation, or raising to a power, has higher precedence than making a value negative. Python's -16 result can be confusing because, in math, "-4 squared" is 16 . From the beginning of the statement, the python interpreter knows that the programmer is using single quotes to denote the start and end of the string literal, and can therefore treat the double quote it encounters as a double quote, instead of the end of the string.
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