Solve.An electron beam is made to perform a repeated unidirectional sweep across a phosphor-coated display panel by a time-periodic sweep voltage, V, given as V(t) = 60t -1 ? t < 1Find a0 (if it is not zero), three nonzero cosine terms (if they exist), and three nonzero sine terms (if they exist) of the Fourier series for the time-dependent voltage.
A. 120
B. 
C. 
D. 
Answer: B
Mathematics
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Evaluate the expression.
A. 
B. 1
C. 5
D. 5!
Mathematics
Multiply.(-7x4)(7x3)(-9x6)
A. 441x72 B. -441x13 C. 441x13 D. -441x72
Mathematics
Write the standard form of the equation of the circle with radius r and center (h, k).r = 8; (h, k) = (0, 2)
A. (x + 2)2 + y2 = 64 B. x2 + (y - 2)2 = 64 C. (x - 2)2 + y2 = 64 D. x2 + (y + 2)2 = 8
Mathematics
Find the center (h, k) and radius r of the circle with the given equation. x2 + y2 + 2x - 4y = 31
A. (h, k) = (2, -1); r = 6 B. (h, k) = (1, -2); r = 36 C. (h, k) = (-2, 1); r = 36 D. (h, k) = (-1, 2); r = 6
Mathematics