Given that real numbers x and y satisfy y = √ (the square of 3-x), we can find the range of (y + 1) / (x + 3) and (2x + 2Y)

Let P (x, y) be any point, then k = (y + 1) / (x + 3) denote the slope of the line between P and a (- 3, - 1)

Let a and B be two nonempty sets, a = {negative 1,2}, B = {negative 1 / M}. If the intersection of a and B is not equal to an empty set, then the set composed of the values of real number m is? 1

If a intersection B is not an empty set, then
1．-1=-1/m,m=1
2．2=-1/m,m=-1/2
So, the set of M is {1, - 1 / 2}

Set M = {1,2}, n = {a, B} M = n values of real numbers a, B

∵M=N
∴{1,2}={a,b}
∴a=1,b=2
or
a=2,b=1
Hope to adopt, O (∩)_ Thank you

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