Using the Superposition Theorem, find IR3 and VR4 .
E1 = 15.0 V
E2 = 35.0 V
R1 = 10 Kê
R2 = 10 Kê
R3 = 25 Kê
R4 = 15 Kê
IR3 = 787 æA
Mathematics
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Determine whether the function is odd, even, or neither.f(x) = cos(x3)
A. Odd B. Even C. Neither
Mathematics
Solve the equation.
= 5
A. {1, -9} B. ? C. {1} D. {-1, 9}
Mathematics
Perform the indicated operations and express your answer in the form a + bi. 
A. ±4
B. -4i
C. 4i
D. -i
Mathematics
Solve the problem.Find the area A and circumference C of a circle of diameter 7 mi. Use 3.14 for ?. Round the result to the nearest tenth.
A. A = 22 mi2; C = 22.0 mi B. A = 38.5 mi2; C = 22.0 mi C. A = 44 mi2; C = 11.0 mi D. A = 153.9 mi2; C = 11.0 mi
Mathematics