E
Editor
Sep 18, 2022
If $90^{\circ}<\alpha<180^{\circ}<\beta<360^{\circ}$, then which of the following cannot be true?
Difficulty: Easy
A:
$\sin\alpha=\cos\beta$
B:
$\sin\alpha=\sin\beta$
C:
$\tan\alpha=\sin\beta$
D:
$\sec\alpha=\csc\beta$
ID: 63273dbaca83163ac3a131e7