Decide whether or not the given equation is an identity.tan(90° + x) = -cot x
A. Yes
B. No
Answer: A
Mathematics
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Convert the degree measure to radian measure. Use the value of ? found on a calculator and round answers to three decimal places.129.2°
A. 405.894 B. 2.255 C. 0.443 D. 4.51
Mathematics
Determine the value of the trigonometric function of ? using the given information.If sin ? = 
and cos ? = - 
, then determine the value of cot ?.
A. - 
B. 
C. - 
D. 
Mathematics
Match the graph to its equation.
A. - 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
- 
= 1
Mathematics
Find zw or 
as specified. Leave your answer in polar form.z = 6
w = 12
Find 
.
A. 
B. 
C. 
D. 
Mathematics