Question

Cos A-sinA+1/Cos A +sinA - 1= cosecA + cotA​

Answer 1

Step-by-step explanation:

cosA-sinA+1

cosA+1-sinA

2cos²A/2-2sinA/2cosA/2

2cosA/2(cosA/2-sinA/2)

cosA+sinA-1

sinA-(1-cosA)

2sinA/2cosA/2-2sin²A/2

2sinA/2(cosA/2-sinA/2)

(cosA-sinA+1)÷(cosA+sinA-1)

2cosA/2(cosA/2-sinA/2)

2sinA/2(cosA/2-sinA/2)

cotA/2

Answer 2

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