1. ## Trigonometry

Is Ther Anyone That Is Really Smart In Trigonometry I Need Help Asap

2. you're at the right place. what is the problem?

3. Originally Posted by Jonboy
you're at the right place. what is the problem?
Find the complement of a 51 ° 49' angle.
a. 38 ° 11'
b. 128 ° 11'
c. 38 ° 51'
d. 128 ° 51'

4. Originally Posted by missjky
Find the complement of a 51 ° 49' angle.
a. 38 ° 11'
b. 128 ° 11'
c. 38 ° 51'
d. 128 ° 51'

Find the supplement of the radian measure 7 π /8. Express your answer in terms of π .
a. 13 π /8
b. π /8
c. 9 π /8
d. 5 π /8

Find the value of sec 38 ° to 4 decimal places.
a. 1.6243
b. 0.7880
c. 0.6157
d. 1.2690

Find the value of tan 42 ° to 4 decimal places.
a. 2.2914
b. 0.9004
c. 1.1106
d. 0.7431

Find the exact value of sin 30 ° - sin 45 ° cos 45 ° .
a. 0
b. 1/2
c. 1
d. 2

Find the exact value of cos .
a.
b.
c.
d. 2

If θ is an acute angle in standard position and cot θ = 12/5, find sin θ .
a. 12/13
b. 5/13
c. 13/12
d. 13/5

5. [quote=missjky;155287]

Basically i need help on all these problems

1. Find the complement of a 51 ° 49' angle.
a. 38 ° 11'
b. 128 ° 11'
c. 38 ° 51'
d. 128 ° 51'

2. Find the supplement of the radian measure 7 π /8. Express your answer in terms of π .
a. 13 π /8
b. π /8
c. 9 π /8
d. 5 π /8

3. Classify 725 ° by quadrant, and state the positive angle with measure less than 360 ° that is coterminal with it.

4. Convert 105 ° to exact radian measure.
a. 6 π /7
b. 12 π /7
c. 7 π /6
d. 7 π /12

5. Convert the radian measure 7 π /5 to exact degree measure.
a. 128.5 °
b. 252 °
c. 504 °
d. 126 °

6. Convert the radian measure 1.6 to degree measure to the nearest hundredth of a degree.
a. 91.67 °
b. 288 °
c. 183.35 °
d. 97.40 °

7. Find the measure in radians of the central angle of a circle with radius 4 inches and arc length 8 inches.
a. 32
b. 0.5
c. 2
d. 2 π

8. Find the length of an arc that subtends a central angle of 150 ° in a circle of radius 5 centimeters.
a. 25 π /6 centimeters
b. 750 centimeters
c. 30 centimeters
d. π /6 centimeters

9. Find the values of the six trigonometric functions of the acute angle in standard position with the terminal side passing through the point P(8, 6).
a. sin θ = 3/5; cos θ = 4/5; tan θ = 4/3; csc θ = 5/3; sec θ = 5/4; cot θ = 3/4
b. sin θ = 4/5; cos θ = 3/5; tan θ = 4/3; csc θ = 5/4; sec θ = 5/3; cot θ = 3/4
c. sin θ = 3/5; cos θ = 4/5; tan θ = 3/4; csc θ = 5/3; sec θ = 5/4; cot θ = 4/3
d. sin θ = 4/5; cos θ = 3/5; tan θ = 3/4; csc θ = 5/4; sec θ = 5/3; cot θ = 4/3

10. If θ is an acute angle in standard position and cos θ = 4/5, find sin θ .
a. 4/3
b. 5/4
c. 5/3
d. 3/5

11. If θ is an acute angle in standard position and cot θ = 12/5, find sin θ .
a. 12/13
b. 5/13
c. 13/12
d. 13/5

12. Find the exact value of cos .
a.
b.
c.
d. 2

13. Find the exact value of sin 30 ° - sin 45 ° cos 45 ° .
a. 0
b. 1/2
c. 1
d. 2

14. Find the value of tan 42 ° to 4 decimal places.
a. 2.2914
b. 0.9004
c. 1.1106
d. 0.7431

15. Find the value of sec 38 ° to 4 decimal places.
a. 1.6243
b. 0.7880
c. 0.6157
d. 1.2690

6. Sorry, we are not doing peoples homework for them here. Please work out on your own and ask only if you are stuck. And when you ask a question, show us your work so we can help you.

7. Originally Posted by wingless