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| 1. |
In `DeltaABC, sin(A-B)/sin(A+B)=`A. `(a^(2)-b^(2))/(2c^(2))`B. `(b^(2)-c^(2))/(2a^(2))`C. `(a^(2)-b^(2))/(c^(2))`D. `(b^(2)-a^(2))/(c^(2))` |
| Answer» Correct Answer - C | |