Evaluate the expression  figure 1.png)
and write the result in the form a + bi.
(a) 4 + 5i
(b) 4 - 5i
(c) - 5 - 4i
(d) 5 + 4i
(e) none of these
(a) 4 + 5i
Mathematics
You might also like to view...
Write the function in the form y = f(u) and u = g(x). Then find dy/dx as a function of x.y = cot(9x - 6)
A. y = cot u; u = 9x - 6; 
= - 9 cot(9x - 6) csc(9x - 6)
B. y = 9u - 6; u = cot x; 
= - 9 cot x csc2 x
C. y = cot u; u = 9x - 6; 
= - csc2(9x - 6)
D. y = cot u; u = 9x - 6; 
= - 9 csc2(9x - 6)
Mathematics
Evaluate the integral using the given substitution.
, u = cot 7?
A. - 
cot2 7? + C
B. 
csc3 7? cot2 7? + C
C. 
cot2 ? + C
D. - 
tan2 7? + C
Mathematics
Evaluate the expression.
A. 720 B. 1 C. 10 D. 90
Mathematics
Round to the indicated place.33,838 to the nearest ten thousand
A. 33,830 B. 30,000 C. 40,000 D. 3
Mathematics