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In `Delta ABC, (sin A (a - b cos C))/(sin C (c -b cos A))=`A. `-2`B. `-1`C. 0D. 1 |
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Answer» Correct Answer - D `(sinA (a -b cos C))/(sinC (c -b cos A))` `= (sin A (b cos C + c cos B - cos C))/(sin C (a cos B + b cos A - b cos A))` `= (sin A (c cos B))/(sin C (a cos B))` `=1 " " ("as " c sin A = a sin C)` |
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