Question

Please solve this anyone (・・;)​

Answer 1

Step-by-step explanation:

cos∅ - sin∅ + 1)/(cos∅ + sin∅-1) dividing sin∅ both Numerator

and denominator. = (cos∅/sin∅ - sin∅/sin∅ + 1/sin∅)/(cos∅/sin∅ + sin∅/sin∅ - 1/sin∅) = (cot∅

- 1 + cosec∅)/(cot∅ + 1 - cosec∅) now, put 1 =

cosec²∅ - cot²∅ in numerator = {cot∅ + cosec∅

- (cosec²∅-cot²∅)}/(cot∅-cosec∅ +1) = (cosec∅+cot∅)(1 - cosec∅ + cot∅)/(cot∅-cosec∅+1) =

cosec∅ + cot∅ = RHS Hence