Grade 12Trigonometry
Could someone please help me the question in the photo?
Could someone please help me the question in the photo?
2 Answers
Arun
Approved Tutor Answer7 Years agoDear student
There is no photo attached. Please check and repost the image.I will be happy to help you.
Arun
Sorry there was an error that I could not see the attached image.
(cotA+cosecA-1)/(cotA-cosecA+1)
=(cotA+cosecA-1)²/(cotA+cosecA-1)(cotA-cosecA+1)
=(Cot²A+cosec²A+1+2cotAcosecA-2cotA-2cosecA)/(cot²A-cosec²A-1+2cosecA)
={2cosec²A-2cosecA+2cotA(cosecA-1)}/(2cosecA-2)
={2cosecA(cosecA-1)+2cotA(cosecA-1)}/2(cosecA-1)
=2(cosecA-1)(cosecA+cotA)/2(cosecA-1)
=cosecA+cotA
= (1 + cos theta) / sin theta
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