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Magazine Chapter 6: Q 109 (page 396)
Is the tangent function even, odd, or neither? Is its graph symmetric? With respect to what?
Short Answer
The tangent function is an odd function.
It is symmetrical about origin.
Step by step solution
Step 1. Given Information
We have to check that the tangent 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.
Step 2. To check that Tangent function is even, odd or neither.
We know that a function is even if and is odd if .
We also know that :-
.
So we can conclude that Tangent function is an odd function.
Step 3. To check about symmetric
To check the symmetry of the tangent function we will use graphing utility.
By using graphing utility, we can graph the tangent 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 tangent function is symmetric about origin.
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