Find the value of the indicated trigonometric function of the angle ? in the figure. Rationalize the denominator where necessary.
Find sec ?.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Is the statement correct?The set of primes together with the set of composites is the set of natural numbers.
A. yes B. no
Mathematics
Use logarithmic differentiation to find the derivative of y.y = 
A. 
B. ln x + 
ln(x3 + 3) - 
ln(x + 4)
C. 
D. 
+ 
- 
Mathematics
Find f.
(t) = 2t ? 4sint, f(0) = 5
Select the correct answer.
a. f(t) = 
? 3cost ? 5
b. f(t) = + 4cost + 1
c. f(t) = 2t ? 3sint + 5
d. f(t) = + 3cost
e. None of these
Mathematics
Identify the graph of the function. ? y = cos 3x ?
A. ?
B. ?
C. ?
D. ?
E. ?
Mathematics