Establish the identity.
= csc u + cot u
What will be an ideal response?
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= csc u + cot u
Mathematics
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If Z = ûXC + XL, find Z when Xc = 30 ê and XL = 40 ê.
ÚÄÄÄÄÄÄÄÄ ³ 2 2 a. 8.4 ê b. 120 ê c. 70 ê d. 50 ê e. 100 ê
Mathematics
Evaluate.Let a = 
i + 
j , b = 
i + 
j. Find a + b.
A. 
i - 
j
B. 
i + 
j
C. 
i + 
j
D. 
i + 
j
Mathematics
Simplify each side of the equation and then solve. Check your solution.-2 - (-10) = 2x
A. 9 B. 6 C. 4 D. 10
Mathematics
State the domain of the rational function.f(x) = 
A. (-?, -5) ? (-5, ?) B. (-?, 5) ? (5, ?) C. (-?, 7) ? (7, ?) D. (-?, - 5) ? (- 5, 5) ? (5, ?)
Mathematics