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024infinite

Answer :

CSolution :

See the graph of `y=2 cos x and y=|sinx|.` Their points of intersection represent the solution of the given equation. <br> <img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/CEN_CAL_C01_E16_123_S01.png" width="80%"> <br> We find the graphs intersect at four points. Hence, the equation has four solutions.**meaning of function**

**Modulus; signum; greatest integer and fractional part function**

**representation of function**

**Physical interpretation**

**Domain codomain and range of function**

**Graph of function: Vertical line test**

**Identity function**

**Explain Constant function with graph**

**Modulus function and properties**

**Greatest integer function and properties**