Answer to Question #7206 in Trigonometry for Davoo

Question

What is the identity of SinÂ










1cscÂ



1secÂ



1cotÂ



1tanÂ









2What is the identity of CosÂ










1cscÂ



1cosÂ



1secÂ



1sinÂ









3What is the identity of tanÂ










1cotÂ



1tanÂ



1cscÂ



1sinÂ









4What is the identity of cosecantÂ










1sinÂ



1secÂ



1tanÂ



1cosÂ









5What is Sin2x+Cos2x










tan2x



1



2



sec2x









6What is cos2x










2cos2xÀ1



2sinxcosx



cosxsinx



cos2x









7At what quadrant is 620










1st



3rd



2nd



4th









8At what quadrant is 3100










3rd



4th



1st



2nd









9Find the value of cos[40:70]










0.7581



0.3421



0.6347



0.1583









10Fin

Answer 1

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