## Related questions with answers

Question

Find the following ratio by drawing a reference angle.

$\sin 315^{\circ}$

Solution

VerifiedAnswered 2 years ago

Answered 2 years ago

Step 1

1 of 2A $\textbf{Periodic function }$ is a function which repeats its value at fix regular interval. For example let f(x) be a periodic function with having period $T$ then it should be : $\boxed{\ \ f(x)=f(x+T)\ \ }$

In the given graph we can see that the value of function is repeating at regular interval. The value of the function is same after the interval of 5.

$f(-4)=f(4)\ \Rightarrow\ \text{so period }=4+4=8$

$\textbf{Hence, given graph is of periodic function with period 8}$

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