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| 1. |
If sec²ø(1+sin ø)(1- sinø)= k ‚then find the value of k |
| Answer» sec2\xa0{tex}\\theta{/tex}\xa0(1 + sin\xa0{tex}\\theta{/tex}) (1 - sin\xa0{tex}\\theta{/tex}) = k{tex}\\Rightarrow{/tex}\xa0sec2\xa0{tex}\\theta{/tex}\xa0(1 - sin2\xa0{tex}\\theta{/tex}) = k{tex}\\Rightarrow{/tex}\xa0sec2\xa0{tex}\\theta{/tex}\xa0. cos2\xa0{tex}\\theta{/tex}\xa0= k{tex}\\Rightarrow{/tex}\xa0k = 1 | |