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How can you prove that 3 plus 2x⁵ is an irrational number where x⁵ is irrational?
Wiki User
∙ 7y ago
1) Adding an irrational number and a rational number will always give you an irrational number.
2) Multiplying an irrational number by a non-zero rational number will always give you an irrational number.
Wiki User
∙ 7y ago
Wiki User
∙ 9y agoThe set of rational numbers is closed under the basic operations of arithmetic.
Suppose 3 + 2x5 is rational.
Subtract 3, which is a rational number: then 2x5 is rational
Divide by 2, a rational number: then x5 is rational.
But you are given that x5 is irrational therefore the supposition was wrong. That is, 3 + 2x5 is not rational.
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Give x-y is rational number prove that 2x 3y is irrational number?
This can't be proved because it is not necessarily true. If x is 2 and y is 1 then x-y is 1, which is rational. The product of 2x and 3y is 12, which is also rational. Sadly, you can't disprove it either; for certain values of x,y it is true as posited.
What is twice a number plus 27?
2x + 27, where x is your number
How do you write double a number plus 20?
2X+20 Where "X" is your number.
Which equation represents a line that is parallel to the line represented by the equuation y equals -2x plus 5?
(Y = -2x plus or minus any number) is parallel to (Y = -2x + 5) .
The sum of twice a number plus four times another number?
2x+4y
Give x-y is rational number prove that 2x 3y is irrational number?
This can't be proved because it is not necessarily true. If x is 2 and y is 1 then x-y is 1, which is rational. The product of 2x and 3y is 12, which is also rational. Sadly, you can't disprove it either; for certain values of x,y it is true as posited.
What is twice a number plus 27?
2x + 27, where x is your number
What equation is parallel to y-2x equals 5?
[ y = 2x plus or minus any number ] is parallel to it. [ y = -0.5x plus or minus any number ] is perpendicular to it.
How do you write double a number plus 20?
2X+20 Where "X" is your number.
How do you write out twice a number plus 27?
2x + 27
What is 2x-1 plus 2x-1 plus 2x-1 plus 2x-1?
8x-4
Which line is parallel to y equals -2x plus 6?
[ y = -2x + any other number ] is parallel to [ y = -2x + 6 ].
Which equation represents a line that is parallel to the line represented by the equuation y equals -2x plus 5?
(Y = -2x plus or minus any number) is parallel to (Y = -2x + 5) .
The sum of twice a number plus four times another number?
2x+4y
What is the answer to 3x plus 2x-8x plus 2x?
3x + 2x - 8x + 2x = -x
2x plus 2x plus 2x equals 6?
x=1
What is the verbal expression of 81 2x?
eigthy one plus a number
