Add.-12 + (-10)
A. 22
B. -22
C. -2
D. 2
Answer: B
Mathematics
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Find the velocity vector in terms of ur and u?.r = 2 cos 4t and ? = 2t
A. v = (-4 sin 4t)ur + 4cos 4tu? B. v = (-4 sin 2t)ur + 8cos 2tu? C. v = (-8 sin 4t)ur + 4cos 4tu? D. v = (8 sin 4t)ur + 4cos 4tu?
Mathematics
Find the particular solution to the given differential equation that satisfies the given conditions.D2y + 2 Dy + 17y = 0; y = 0 when x = 0 and y = e-?/8 when x = ?/8
A. y = e-x cos 4x B. y = e-x sin 4x C. y = e-x (C1 sin 4x + C2 cos 4x) D. y = ex sin 4x
Mathematics
Find the unknown value.What percent of 900 is 45?
A. 21% B. 5% C. 20% D. 6%
Mathematics
Evaluate the following improper integral whenever it is convergent.
?
?
A. -6 B. 11 C. 3 D. 7 E. the integral is divergent
Mathematics