Math, asked by duttapalkpa3411, 10 months ago

How to convert cosA.sinA =1/(tanA+cosA)

Answers

Answered by mehek2440
1

HELLOO!!!!!

HERE IS UR ANSWER:-

LHS

LHS=cosA/(1-tanA)+sinA/(1-cotA)

LHS=cosA/(1-tanA)+sinA/(1-cotA)=cos A/(1 - sin A/cos A) + sin A/(1 - cos A/sin A)

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)

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)

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)

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)

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

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Answered by sakshamsaksham4224
0

Answer:sinA canvort cos A

Step-by-step explanation:

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