Question

what is wavy curve method??

Answer 1

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The method of interval also known as wavy curve method is used for solving inequality of the function f(x).
The method of interval also known as wavy curve method is used for solving inequality of the function f(x) of the form



Steps of wavy curve method :
1. All zeros of the function f(x) contained on the left hand side of the inequality should be marked on the number line with inked (black) circles.
2. All points of discontinuities of the function f(x) contained on the left hand side of the inequality should be marked on the number line with un-inked (white) circles.
3. From right to left, beginning above the number line (in case of value of f(x) is positive in step (iii), otherwise, from below the number line), a wavy curve should be drawn to pass through all the marked points so that when it passes through a simple point the curve intersects the number line, and, when passing through a double point the curve remains located on one side of the number line.
4. The appropriate intervals are chosen in accordance with the sign of inequality (the function f(x) is positive whenever the curve is situated above the number line, it is negative if the curve is found below the number line). Their union represents the solution of inequality.

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Answer 2

Answer:

The method of interval is known as wavy curve