hey guys, just need to check if my working out and solution is correct. Find the coefficient of in the expansion My solution So: now since we need to find coefficient of , therefore . so = =
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Originally Posted by jvignacio hey guys, just need to check if my working out and solution is correct. Find the coefficient of in the expansion My solution So: now since we need to find coefficient of , therefore . so = = It's not. The general term is . You require the coefficient corresponding to 8 - r = 6.
Originally Posted by mr fantastic It's not. The general term is . You require the coefficient corresponding to 8 - r = 6. So: now since we need to find coefficient of , , so . so = = = this better?
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