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

Expert's answer

1. 1/cscA

2. 1/secA

3. 1/cotA

4. 1/sinA

5. sin^{2}x+cos^{2}x=1

6. cos2x=2cos^{2}x-1

7. 3th

8. 3th

9. -10. use your calculator

2. 1/secA

3. 1/cotA

4. 1/sinA

5. sin

6. cos2x=2cos

7. 3th

8. 3th

9. -10. use your calculator

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