Establish the identity.
= sin ? sin ?
What will be an ideal response?
= 
= 
= 
= sin ? sin ?
Mathematics
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Evaluate the definite integral. Express the answer in terms of natural logarithms.
A. ln
B. 
ln
C. 
ln
D. ln 2
Mathematics
Solve.p2 - 10p + 21 > 0
A. (3, 7), or {p
3 < p < 7}
B. (7, ?), or {p
p > 7}
C. (-?, 3) ? (7, ?), or {p
p < 3 or p > 7}
D. (-?, 3), or {p
p < 3}
Mathematics
Determine the domain and range of the function. Then graph it.f(x) = 
A. domain = [0, ?), range = [5, ?)
B. domain = [-5, ?), range = [0, ?)
C. domain = [5, ?), range = [0, ?)
D. domain = [0, ?), range = [-5, ?)
Mathematics
Solve by completing the square.3x2 - 18x + 42 = 0
A. 3 + i
, -3 - i
B. -3 - i
C. 3 + i
, 3 - i
D. 3+ i
Mathematics