Find the transform of the given function of s.F
= 
A. f = e5t
B. f = e-5t
C. f = e-5t
D. f = e-4t
Answer: B
Mathematics
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Solve the equation on the interval [0, 2?).sin x - 2 sin x cos x = 0
A. 0, , ?,
B. ,
C. , ?,
, 2?
D. ,
, 2?
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The function f is one-to-one. Find its inverse.f(x) =
A. f-1(x) = (x - 7)2
B. f-1(x) = x2 - 7, x ? 0
C. f-1(x) = x2 + 7, x ? 0
D. f-1(x) =
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Solve the equation f(x) = 0 analytically and then use the graph of y = f(x) to solve the inequalities f(x) < 0 and f(x) = 3(4x) - 48
A. {2}; (-?, 2); [2, ?) B. {-2}; (-?, -2); [-2, ?) C. {2}; [2, ?); (-?, 2) D. {2}; (-?, 2]; (2, ?)
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Use a half-angle formula to find the exact value of the expression.cos
A. -
B.
C. -
D.
Mathematics