sin and cos compared around 45 degrees

1. A.
   $\sin(t) < \cos(t)$ when $t > 45^\circ$
2. B.
   $\sin(t) \ne \cos(t)$ when $t = 45^\circ$
3. C.
   $\sin(t) < \cos(t)$ when $t < 45^\circ$
4. D.
   $\sin(t) > \cos(t)$ when $t < 45^\circ$

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1. A.
   $60^\circ$
2. B.
   $45^\circ$
3. C.
   $30^\circ$
4. D.
   $75^\circ$

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