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| 1. |
cosecA + sinA = 2 To find sinA^2 + cosecA^2= |
| Answer» (CosecA + sinA ) = 2 Cosec^2A + sin^2A + 2cosecA×sinA = 4 [by squaring on both sides] Cosec^2 + sin^2 + 2×1/sin ×sin = 4 Cosec^2 + Sin^2 + 2 = 4 Cosec^2 + Sin^2 = 2.. | |