christina18
New member
- Joined
- Apr 3, 2006
- Messages
- 26
are these right?...
1. The exact trig function value with rational denominator for csc 45 degrees is:
a. radical (2)
b. 1
c. 2 radical (3)
d. 1/2
*choice d
2. Using a calculator find the value of cot (-414degrees) to four decimal places.
a. -0.7265
b. -9.5143
c. -1.3764
d. -2.2460
*choice b
3. the cofunction of sin 28degrees is:
a. cos 152 degrees
b. cos 28 degrees
c. cos 62 degrees
d. csc 62 degrees
*choice a
4. find the measures of two angles, one positive and one negative, that are coterminal with the angle 28 degrees
a. 388 degrees; 152 degrees
b. 388 degrees; -332 degrees
c. 208 degrees; -152 degrees
d. 118 degrees; -62 degrees
*choice c
1. The exact trig function value with rational denominator for csc 45 degrees is:
a. radical (2)
b. 1
c. 2 radical (3)
d. 1/2
*choice d
2. Using a calculator find the value of cot (-414degrees) to four decimal places.
a. -0.7265
b. -9.5143
c. -1.3764
d. -2.2460
*choice b
3. the cofunction of sin 28degrees is:
a. cos 152 degrees
b. cos 28 degrees
c. cos 62 degrees
d. csc 62 degrees
*choice a
4. find the measures of two angles, one positive and one negative, that are coterminal with the angle 28 degrees
a. 388 degrees; 152 degrees
b. 388 degrees; -332 degrees
c. 208 degrees; -152 degrees
d. 118 degrees; -62 degrees
*choice c