Let a and b be real numbers such that a + b = 4 and a^4 + b^4 =...

Let a and b be real numbers. Describe the graph of r = a(cos(theta)+b) as much as possible. (The...

what are real numbers

given real numbers x, a, b with x>= a>= b>= 0, show that sqrt x+b - sqrt x-a >= sqrt x+a - sqrt x-b

Let x, y, and z be real numbers such that cos(x) + cos(y) + cos(z) = sin(x) + sin(y) + sin(z) = 0....

For all real numbers a and b, 2a*b = a^2+b^2. True or false? If false, explain your reasoning. I...

All real numbers less than 69

The real numbers $a$ and $b$ satisfy $a - b = 1$ and $a^3 - b^3 = 1.$ (a) Find all possible value...

The set of all real numbers EXCEPT, _____ numbers are of utmost importance in real analysis. Ques...

all real numbers at most –3.5 or at least 7.5

Let $x$ and $y$ be real numbers such that $x^3 + 3xy^2 = 679$ and $x^3 - 3xy^2 = 615.$ Find $x - y....

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