Question
In Problems $37-54,$ use Fundamental Identities and/or the Complementary Angle Theorem to find the exact value of each expression. Do not use a calculator.$$\sin 38^{\circ}-\cos 52^{\circ}$$
Step 1
This is due to the Complementary Angle Theorem. So, we can write $\sin 38^{\circ}$ as $\cos (90^{\circ} - 38^{\circ})$. Show more…
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