Answer:
24
Step-by-step explanation:
(a)

Substitute <em>x</em> = 3 tan(<em>t</em> ) and d<em>x</em> = 3 sec²(<em>t </em>) d<em>t</em> :


(b) The series

converges by comparison to the convergent <em>p</em>-series,

(c) The series

converges absolutely, since

That is, ∑ (-1)ⁿ (<em>n</em> ² + 9)/<em>e</em>ⁿ converges absolutely because ∑ |(-1)ⁿ (<em>n</em> ² + 9)/<em>e</em>ⁿ| = ∑ (<em>n</em> ² + 9)/<em>e</em>ⁿ in turn converges by comparison to a geometric series.
Answer: right
Step-by-step explanation:
Answer:
a.240.15
Step-by-step explanation:
a.240.15
b.12.0075
c.252.1575
Answer:
x = -4y
<em>Hope that helps! :)</em>
<em>-Aphrodite</em>
Step-by-step explanation: