# Answer to Question #7522 in Trigonometry for Timothy Scaping

Question #7522

1 What is the identity of SinÂ

1cscÂ

1secÂ

1cotÂ

1tanÂ

2 What is the identity of CosÂ

1cscÂ

1cosÂ

1secÂ

1sinÂ

3 What is the identity of tanÂ

1cotÂ

1tanÂ

1cscÂ

1sinÂ

4 What is the identity of cosecantÂ

1sinÂ

1secÂ

1tanÂ

1cosÂ

5 What is Sin2x+Cos2x

tan2x

1

2

sec2x

6 What is cos2x

2cos2xÀ1

2sinxcosx

cosxsinx

cos2x

7 At what quadrant is 620

1st

3rd

2nd

4th

8 At what quadrant is 3100

3rd

4th

1st

2nd

9 Find the value of cos[40:70]

0.7581

0.3421

0.6347

0.1583

10 Find the value of cos[30:00]

0.8599

0.9833

0.8581

0.5

1cscÂ

1secÂ

1cotÂ

1tanÂ

2 What is the identity of CosÂ

1cscÂ

1cosÂ

1secÂ

1sinÂ

3 What is the identity of tanÂ

1cotÂ

1tanÂ

1cscÂ

1sinÂ

4 What is the identity of cosecantÂ

1sinÂ

1secÂ

1tanÂ

1cosÂ

5 What is Sin2x+Cos2x

tan2x

1

2

sec2x

6 What is cos2x

2cos2xÀ1

2sinxcosx

cosxsinx

cos2x

7 At what quadrant is 620

1st

3rd

2nd

4th

8 At what quadrant is 3100

3rd

4th

1st

2nd

9 Find the value of cos[40:70]

0.7581

0.3421

0.6347

0.1583

10 Find the value of cos[30:00]

0.8599

0.9833

0.8581

0.5

Expert's answer

1. 1/cscA

2. 1/secA

3. 1/cotA

4. 1/sinA

5. sin

6. cos2x=2cos

7. 3th

8. 3th

9. -10. use your calculator

2. 1/secA

3. 1/cotA

4. 1/sinA

5. sin

^{2}x+cos^{2}x=16. cos2x=2cos

^{2}x-17. 3th

8. 3th

9. -10. use your calculator

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