Question
In Problems 39–56, use the even–odd properties to find the exact value of each expression. Do not use a calculator.$$\sin \left(-135^{\circ}\right)$$
Step 1
We know that sine is an odd function, which means $\sin(-x) = -\sin(x)$. So, $\sin \left(-135^{\circ}\right)$ is equal to $-\sin \left(135^{\circ}\right)$. Show more…
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