Assuming that the estimate is based on sensible approximations, there is no simple way. You will need to compare the estimate and the true value.
If you've rounded up, the estimate will be greater. If you've rounded down, the estimate will be less.
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These two numbers are the exact same, therefore they are equal.
If you mean something like this: 5+-2=? It's just like the plus sign wasn't there. The same exact problem can be written like this: 5-2=?
In the Punchline Algebra book, the answer to problem b 17.9 will depend on the specific question being asked in that exercise. Without knowing the exact content of the problem, it is not possible to provide a definitive answer. To determine the correct solution, you will need to carefully read the question and apply the relevant algebraic principles and techniques taught in the book.
Answer #1:The exact value is (square root of 6 + square root of 2) / 4===========================Answer #2:I don't think so.The sine of almost all angles is an irrational number. 75 degrees is one of them.That means its sine can never be exactly written with numbers.The value given in Answer #1 is greater than ' 1 ', and we know that no sine canhave that value.
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