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Chapter 6: Q 107 (page 396)

Is the sine function even, odd, or neither? Is its graph symmetric? With respect to what?

Short Answer

Expert verified

The sine function is an odd function.

It is symmetrical about origin.

Step by step solution

01

Step 1. Given Information

We have to check that the sine function is an even function, odd function or neither.

Also we have to check that it is symmetric or not.

If yes, then we also to find that it is symmetric about what.

02

Step 2. To check that Sine function is even, odd or neither. 

We know that a function is even if f(-x)=f(x)and is odd if role="math" f(-x)=-f(x).

We also know that sin(-θ)=-sinθ.

So we can conclude that Sine function is an odd function.

03

Step 3. To check about symmetric

To check the symmetry of the sine function we will use graphing utility.

By using graphing utility, we can graph the sine function as following :-

From the graph we can see that the graph is neither symmetric about x-axis not y-axis, but it is symmetric about origin.

So we can conclude that sine function is symmetric about origin.

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