What is cot(7π/2) ? PreCalculus
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What is cot(7π/2) ? PreCalculus

[From: ] [author: ] [Date: 11-11-10] [Hit: ]
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What is cot(7π/2) ?

-
cot(7π/2)
= cot(2π + 3π/2)
= cot(3π/2)
= cot(2π - π/2)
= -cot(π/2)
= 0
1
keywords: PreCalculus,What,cot,is,pi,What is cot(7π/2) ? PreCalculus
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