# Answer to Question #7206 in Trigonometry for Davoo

Question #7206

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

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

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