Fairly challenging question here. I'll still try to solve it while I get the forum's help Deduce that, if , and , then Thanks.
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Now start expanding
Brute force and lengthy expansions *Shudders* I was hoping there would be a neat solution to this, but if straight expansion's the way to go then so be it. Btw 100th post !Yay!
Maybe not the only way to solve this but seems to be the most obvious. Congrats on the 100th post.
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