For all integers x>1. <x>=2x+(2x-1)+(2x-2)+......2+1. What is the value of <3>*<4>?	Choose the correct choice from the following.
A) 60
B) 116
C) 710
D) 756
E) 478
Since <x></x>=2x+(2x-1)+(2x-2)+......2+1=1+2+..+(2x-2)+(2x-1)+2x then<x> is basically the sum of all integers from 1 to 2x, inclusive.   Hence &lt;3&gt; is the sum of all integers from 1 to  2*3</x>= 
<gadget id="calculator"> 2*3</gadget>
<output>6</output>
6 and &lt;4&gt; is the sum of all integers from 1 to  2*4= 
<gadget id="calculator"> 2*4</gadget>
<output>8</output>
8--&gt; &lt;3&gt;=21 and &lt;4&gt;=36 --&gt; &lt;3&gt;*&lt;4&gt;=21*36= 
<gadget id="calculator">21*36</gadget>
<output>756</output>
756.   Answer: 756
<result>D</result>
For all integers x>1. <x>=2x+(2x-1)+(2x-2)+......2+1. What is the value of <3>*<4>?