CosA/1-tanA +sinA/1-cotA =sinA+cosA
Answers
Answered by
1
LHS
=cosA/(1-tanA)+sinA/(1-cotA)
=cos A/(1 - sin A/cos A) + sin A/(1 - cos A/sin A)
=cos²A/ (cos A - sin A) + sin²A / (sin A - cos A)
=cos²A/ (cos A - sin A) - sin²A / (cos A - sin A)
=(cos ² A - sin ² A) / (cos A - sin A)
=(cos A - sin A)(cos A + sin A) / (cos A - sin A)
=cos A + sin A i.e RHS
PLZ MARK AS BRAINLIEST!!!!!!!
Answered by
1
cosA/(1-tanA)+sinA/(1-cotA)
cos A/(1 - sin A/cos A) + sin A/(1 - cos A/sin A)
cos²A/ (cos A - sin A) + sin²A / (sin A - cos A)
cos²A/ (cos A - sin A) - sin²A / (cos A - sin A)
(cos ² A - sin ² A) / (cos A - sin A)
(cos A - sin A)(cos A + sin A) / (cos A - sin A)
cos A + sin A i.e RHS
Similar questions
Economy,
5 months ago
English,
5 months ago
Math,
5 months ago
Environmental Sciences,
11 months ago
English,
1 year ago