loveasare85
loveasare85
16-08-2016
Mathematics
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If sin(t) > 0 and tan(t) < 0 then cos(t)
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caylus
caylus
16-08-2016
Hello,
tan (t)<0
==> sin (t) /cos (t)<0
==>1 / cos (t)<0 [since sin (t) ≠0, dividing by sin (t) ]
==> cos (t) <0
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