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sinB + cosB cotB = cscB
10 years ago

Answers

Matt
cscB - sinB
= 1/sinB - sinB
= (1 - sinB*sinB)/sinB
= (1 - sin^2B)/sinB
= cos^2B/sinB
= cosB*(cosB/sinB)
= cosB(cotB)
10 years ago

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