Saved Bookmarks
| 1. |
(sinA + cosecA)2 + (cosA + secA)2 =7+tan2A + cot2A |
| Answer» LHS=>(sin2A+cosec2A+2×sinA×1/sinA)+(cos2A+sec2A+2×cosA×1/cosA)(sin2A+cosec2A+2+cos2A+sec2A+2)=(sin2A+cos2A)+(1+tan2A)+(1+cot2A)+2+21+1+1+4+tan2A+cot2A7+tan2A+cot2ALHS=RHS Hence proved | |