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Grade: 10
        prove that cos theta minus sin theta + 1 / cos theta + sin theta minus 1 equal to cosec theta + cot theta
9 months ago

Answers : (1)

Arun
13770 Points
							

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cosA-sinA+1 /cos A + sinA-1

numerator and denominator dividng by sinA

cosecA + CotA - 1 / cotA - CosecA + 1

 

cosecA + CotA - ( cosecA^2 - CotA^2) / cotA - CosecA + 1

 

cosecA + CotA - (cosecA + CotA) (cosecA - CotA) /cotA - CosecA + 1

 

(cosecA + CotA)( cotA - CosecA + 1 ) / cotA - cosecA +1

 

cosecA + CotA

9 months ago
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