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1. |
If sin A + sin A = 1, then the value of cos A + cos |
A. | 2 |
B. | <table><tr><td rowspan="2">1</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>2</center></td><td rowspan="2"></td></tr><td align="center">3</td></table> |
C. | <table><tr><td rowspan="2">1</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>2</center></td><td rowspan="2"></td></tr><td align="center">2</td></table> |
D. | 1 |
Answer» E. | |