Which of the following ratios is equivalent to 5/8 ?
2 answers:
You might be interested in
you'll first need to understand the symbols, I've attched a cheat sheet :)
you'll need to see if AB is linked to CD reversed.
If not then it's not A
For B you'll have to see if the angles are parralel to each other.
and for C you'll have to see if the angles are the same.
and D is the same as C
so the answer is ab=cd
<h2>now you understand :)</h2>
Take the expression in chunks:
>>
>>
>>
Note that . So
where the cyclic sum notation means
In other words, we take the sum over all possible cycles of the sequence of arguments to the summand. The second square-bracketed chunk reduces to
So to recap, we've reduced the starting expression to
>>
Finally, we have
Then distributing and rewriting to decode the message, we have