Find the exact value of the following expression without using a calculator.tan 30°
A. 
B. 
C. 1
D. 
Answer: D
Mathematics
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Find the curvature of the curve r(t).r(t) = (7 + ln(sec t))i + (4 + t)k, -?/2 < t < ?/2
A. ? = -cos t B. ? = sin t C. ? = cos t D. ? = 1 - cos t
Mathematics
Graph the linear function and give the domain and range.g(x) = x + 6
A. D = (-?, ?),
R = (-?, ?)
B. D = (-?, ?),
R = (-?, ?)
Mathematics
Provide an appropriate response.Find angle D. Round to the nearest 0.1°. 
A. 44.5° B. 75.9° C. 30.4° D. 59.6°
Mathematics
Simplify the expression. Assume that all variables are positive when they appear.
A. 
B. 
C. 
D. 
- 
Mathematics