Saved Bookmarks
| 1. |
Sintheta/cottheta+cosectheta-sintheta/cottheta -cosectheta =2 |
|
Answer» ong>Step-by-step explanation: Given LHS = Sintheta/cottheta+COSECTHETA - sintheta/cottheta -cosectheta = sinα / (cotα + cosecα) - sinα / (cotα - cosecα) = sinα {(cotα - cosecα) - (cotα + cosecα)} / (cotα - cosecα)(cotα + cosecα) = sinα {cotα - cosecα - cotα - cosecα} / (cot²α - cosec²α) = sinα (-2cosecα) / -1 = 2sinα / sinα = 2 = RHS |
|