Difference between revisions of "005 Sample Final A, Question 21"

Revision as of 12:21, 20 May 2015

Question Find the sum

5+9+13+\cdots +49

Step 1:

Step 2:

Step 3:

Step 4:

Final Answer:

@@ Line 3: / Line 3: @@
 {| class="mw-collapsible mw-collapsed" style = "text-align:left;"
-! Final Answers
+! Step 1:
 |-
-|a) False. Nothing in the definition of a geometric sequence requires the common ratio to be always positive. For example, <math>a_n = (-a)^n</math>
+|
+|}
+{| class="mw-collapsible mw-collapsed" style = "text-align:left;"
+! Step 2:
 |-
-|b) False. Linear systems only have a solution if the lines intersect. So y = x and y = x + 1 will never intersect because they are parallel.
+|
+|}
+{| class="mw-collapsible mw-collapsed" style = "text-align:left;"
+! Step 3:
 |-
-|c) False. <math>y = x^2</math> does not have an inverse.
+|
 |-
-|d) True. <math>cos^2(x) - cos(x) = 0</math> has multiple solutions.
+|
+|}
+{| class="mw-collapsible mw-collapsed" style = "text-align:left;"
+! Step 4:
 |-
-|e) True.
+|
+|}
+{| class="mw-collapsible mw-collapsed" style = "text-align:left;"
+! Step 5:
 |-
-|f) False.
+|
+|-
+|
+|-
+|
+|}
+{| class="mw-collapsible mw-collapsed" style = "text-align:left;"
+! Final Answer:
+|-
+|
 |}