The problem of positive proportion function and inverse proportion function There are some points (x1, Y1) and (X2, Y2) on the inverse scale function image. If x1y2 is known, what quadrant does the function image pass through?

The problem of positive proportion function and inverse proportion function There are some points (x1, Y1) and (X2, Y2) on the inverse scale function image. If x1y2 is known, what quadrant does the function image pass through?

Using the limit method, one or three quadrants

(2 / 2) BC, find the value of real number m; (2) if a = root 3, find the maximum area of triangle ABC

If a = root 3
S = bcsin A / 2, when B = C, the area is the largest
A = 60 ° can be obtained from cosa = 1 / 2
So B = C = a = root 3
S = 3 root 3 / 2

If we know that the length of one side of a triangle is two root sign XY, and the height of this side is root sign XY, we can find the area of the triangle

S triangle = 1 / 2 × bottom × height = 1 / 2 × 2 √ XY × √ xy = XY