Answers

2016-01-26T20:27:06+05:30
(cot 90xtan90=1) so answer is. sin90
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2016-01-26T20:30:26+05:30
Sin90=1.
cot90=0.
tan90= Not defined.
Therefore, sin90*cot90*tan90=1.
tan(teta)=1/cot(teta)
cot(teta)=1/tan(teta).
tan(teta)*cot(teta)=1.
tan90*cot90=1.

Therefore, sin90*tan90*cot90=1*1=1.

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