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Q: What half the product of x and y?

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0.5xy or xy/2

0.5*xy

The sum of x and y decreased by their product is (x + y)- xy.

It is meaningless. You need at least two numbers to get a product. E.g., the product of x and y is xy (x times y).

3x over x + y

X^2y

The equation would be x=y/2 or y=2x

Use the product rule.y = x lnxy' = x (ln x)' + x' (ln x) = x (1/x) + 1 ln x = 1 + ln xUse the product rule.y = x lnxy' = x (ln x)' + x' (ln x) = x (1/x) + 1 ln x = 1 + ln xUse the product rule.y = x lnxy' = x (ln x)' + x' (ln x) = x (1/x) + 1 ln x = 1 + ln xUse the product rule.y = x lnxy' = x (ln x)' + x' (ln x) = x (1/x) + 1 ln x = 1 + ln x

x times y or, symbolically, either x*y or simply xy (where context allows, also X x Y)

A binary function is a function f if there exists sets X, Y, and Z, such that f:X x Y -> Z where X x Y is the cartesian product of X and Y.

The Cauchy-Schwartz inequality is a mathematical inequality. It states that for all vectors x and y of an inner product space, the dot product of x and y squares is less than or equal to the dot product of x to itself multiplied by y to itself.

x = 10, y = 25

One half!

x= y (1/2) or x= y/2 or x= y times 1/2 or x= 1/2y

We know that one of these numbers is a whole number, but we don't know what kind of number the other is, so this statement doesn't tell us anything. We can make different assumptions about the first number, though, and make conclusions that way.Let X be the first number of unknown type, and Y be the whole number, "whole number" meaning the subset {0, 1, 2, 3, …} of the integers. Then:if Y is an integer (any element of the set {…, -2, -1, 0, 1, 2, …}, then the product of X and Y is an integer.if X is a negative integer, the product of X and Y is a negative integer or 0 (which would happen when Y is 0).if X is 0, the product of X and Y is 0.if X is a non-integer rational number, and this rational number can be expressed with a denominator equal to Y, then the product of X and Y is the numerator of X. For example, if X is 20/4 and Y is 4, the product of the two is 20.You can make other rules like this for other situations.

It depends what the special product is. Common special products are: - perfect square trinomials ... x^2 + 2ax + a^2 = (x + a)^2 - difference of squares ... x^2 - y^2 = (x - y)(x + y)

x equals half y

3tx and y

1/2 (x+y)

the graph of y = |x| (absolute value of x) looks like a V with the point of the V at the origin. When x is negative (left half of graph), the line y = -x coincides with |x| so this half has a slope of -1. When x is positive (right half of graph), the line y = x coincides with |x| so this half has a slope of +1.

(x + y)/2 ------------

A reciprocal. x is the reciprocal of y means that x*y = 1 Also, if x is the reciprocal of y then y is the reciprocal of x.

Two solutions:x = 5 and y = 6, orx = 6 and y = 5.

If the two decimal numbers have x and y digits after the decimal points, then the product has (x + y) digits after the decimal point.

7 + x

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