Provide an appropriate response.Let f(x) = 
. The only value(s) of x for which f is discontinuous is (are)
A. 4.
B. -3 and 3.
C. 3.
D. -3.
E. none
Answer: E
Mathematics
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Simplify.log1212
A. 1
B. 0
C. 
D. 12
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Perform the indicated operations and express your answer in the form a + bi. 
A. 3i
B. -i
C. ±3
D. -3i
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Use the fundamental identities to simplify the expression.sin2? + tan2? + cos2?
A. cos3? B. sin ? C. tan2? D. sec2?
Mathematics
A point on the terminal side of angle ? is given. Find the exact value of the indicated trigonometric function of ?.(-4, -3) Find sec ?.
A. 
B. - 
C. 
D. - 
Mathematics