CBSE Class 10 Answered
if cosec∅+cot∅=k then show that cos∅k²-1/k²+1
Asked by rc1827805 | 23 Dec, 2022, 08:11: PM
Expert Answer
...........................(1)
If we multiply numerator and denominator by ( 1 - cosθ ) , then we get
..................................(2)
If we multiply eqn.(1) and eqn.(2) , then we get
If we subtract 1 from LHS and RHS , we get after simplification
............................(3)
If we add 1 to LHS and RHS , we get
............................(4)
By dividing eqn.(3) by eqn.(4) , we get
Answered by Thiyagarajan K | 24 Dec, 2022, 12:25: AM
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