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There are different methods for estimating Irrational Numbers. For numbers like pi or e, there are infinite series which can be used to calculate their value to the required degree of accuracy. There are numerical methods - such as the Newton-Raphson iteration - for estimating roots of numbers.
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Which point on the number line shows the best estimate of the irrational number 57?
None, since 57 is NOT an irrational number.
What is the exact value of cos 70 degrees?
The exact value is an irrational number, and can't be written on paper with digits.0.34202 is less than 0.000042 percent wrong.Cos(70 deg) is an irrational number and it is impossible to give its exact value.
What is the decimal expansion of an irrational no. is?
It is the decimal approximation to the value of the irrational number.
Is a repeating decimal multiplied by a variab an irrational number?
No, the product is a variable and whether or not it is irrational will depend on the value of the variable.
When do you need to approximate an irrational number with a rational value?
If the simplified form of an expression contains an irrational number and a numerical evaluation is required then it is necessary to use a rational approximation.
How doen you estimate an irrational number?
An irrational number has a never-ending decimal expansion. To estimate it's value, you'd just state the expansion to some number of digits. Ex: sqrt(2) is approximately 1.4142135623730950488 pi is approximately 3.14159265358979323846
How do you estimate an irrational number Why might you need to be able to estimate an irrational number?
If you want to use a rational number for a mathematical operation, it will be necessary to estimate it for a numerical outcome. Irrational numbers can't be written out exactly.
Can an irrational number become a rational number?
How would you do that ?? You'd have to change the value of the number. As long as the irrational number keeps its original value, it's an irrational number.
What is the sum of a rational number and irrational number?
The value of the sum depends on the values of the rational number and the irrational number.
How do you estimate an irrational number?
The number of s.f or rounding off
Which point on the number line shows the best estimate of the irrational number 57?
None, since 57 is NOT an irrational number.
Consider the irrational number 73 . Between what two integers is the value of this number?
73 is not irrational!
Is a logarithm an irrational number?
Usually, but not necessarily. A logarithm that is not an integer-value is irrational. For example log10100 = 2 which is a rational number. log1012 = 1.0791812460476... which is an irrational number.
What is a number that can not be made in to a fraction?
It is an irrational number such as the value of pi
Does an irrational number times an irrational number equal an irrational number?
Not always. For example sqrt(2) and 1/sqrt(2) are both irrational, but their product is the rational number 1.
What does irrational number mean?
An irrational number is a number that never ends. Like 24.575235758.... The numbers will go on and on.
Is the absolute value of any nonzero number an irrational number?
O
