Yahoo Answers: Answers and Comments for Simplify the LHS of the identity? [Mathematics]
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enCA
Fri, 08 Aug 2014 01:01:14 +0000
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Yahoo Answers: Answers and Comments for Simplify the LHS of the identity? [Mathematics]
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https://ca.answers.yahoo.com/question/index?qid=20140808010114AATvFF1
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From M3: (tanX  sinX) / (tanX.sinX) ...... divide top ...
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https://ca.answers.yahoo.com/question/index?qid=20140808010114AATvFF1
Fri, 08 Aug 2014 02:05:21 +0000
(tanX  sinX) / (tanX.sinX) ...... divide top & bottom by tanX
= (1  sinX / tanX) / tanX ........ simplify sinX / tan X
= (1  cosX ) / sinX
QED

From Richie Alfred: L.H.S = tan(x)sin(x)) / (tan(x)sin(x))
= [(s...
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https://ca.answers.yahoo.com/question/index?qid=20140808010114AATvFF1
Fri, 08 Aug 2014 01:28:51 +0000
L.H.S = tan(x)sin(x)) / (tan(x)sin(x))
= [(sinx/cosx)  sinx] / [(sinx/cosx)sinx]
= [sinx(1  cosx)/cosx] / [sin²x/cosx]
= { [sinx(1  cosx)] / [sin²x] } [cosx/cosx]
= {(1  cosx) / [sinx]} (1) = (1  cosx) / sinx = RHS
hope this helps

From cidyah: http://s1169.photobucket.com/user/chibuckt/med...
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Fri, 08 Aug 2014 07:00:46 +0000
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