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A rational expression is undefined whenever its denominator is zero?
False
Is negative pi rational or irrational?
-Pi is irrational, because it does not terminate or repeat. Whenever you multiply an irrational number by a rational number (-1), the result is an irrational number.
What fractions are irrational numbers?
If, by fraction, you mean a number which can be written in the form p/q where p and q are integers and q>0, then none of them are irrational.If you mean a number which can be written as x/q where x is real and q is a positive integer, then it is irrational whenever x is irrational.
Is help a verb?
Yes, help is used as a verb and also as a noun.I help my kids with their homework whenever I can. (verb)I offered help when my neighbor's car wouldn't start. (noun)
What is cramer rule?
In linear algebra, Cramer's rule is an explicit formula for the solution of a system of linear equations with as many equations as unknowns, valid whenever the system has a unique solution.
