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| 1. |
What is the value of sin $\frac{-7π}{4}$?1). $\frac{-1}{√2}$2). $\frac{2}{√3}$3). $\frac{1}{√2}$4). $\frac{-2}{√3}$ |
| Answer» RIGHT ANSWER is $\FRAC{1}{√2}$ | |