CBSE Notes 2011-2012 - Binomial Theorem
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enThe coefficients of (r - 1)th, rth and (r + 1)th terms in the expansion of (1 + x)n are in the ratio...
http://cbsenotes.com/notes/the-coefficients-of-r-1th-rth-and-r-1th-terms-in-the-expansion-of-1-xn-are-in-the-ratio
<div class="question_type_name">Short answer question</div><p>The coefficients of (r - 1)th, rth and (r + 1)th terms in the expansion of (1 + x)n are in the ratio of 1:3:5 Find n and r.</p>
Binomial TheoremSat, 24 Dec 2011 20:44:48 +0000mrs_bakshi7302 at http://cbsenotes.com/notesThe 2nd, 3rd and 4th terms in the expansion of (x + y)n are 240, 720 and 1080 respectively. Find the...
http://cbsenotes.com/notes/the-2nd-3rd-and-4th-terms-in-the-expansion-of-x-yn-are-240-720-and-1080-respectively-find-the
<div class="question_type_name">Short answer question</div><p>The 2nd, 3rd and 4th terms in the expansion of (x + y)n are 240, 720 and 1080 respectively. Find the values of x, y and n.</p>
Binomial TheoremSat, 24 Dec 2011 20:44:48 +0000mrs_bakshi7303 at http://cbsenotes.com/notesFind the value of r if the coefficients of (2r + 4)th and (r - 2)th terms in the expansion of (1 + x...
http://cbsenotes.com/notes/find-the-value-of-r-if-the-coefficients-of-2r-4th-and-r-2th-terms-in-the-expansion-of-1-x
<div class="question_type_name">Short answer question</div><p>Find the value of r if the coefficients of (2r + 4)th and (r - 2)th terms in the expansion of (1 + x)18 are equal</p>
Binomial TheoremSat, 24 Dec 2011 20:44:48 +0000mrs_bakshi7304 at http://cbsenotes.com/notesIn the binomial expansion of (x + 1)n, the coefficients of the fifth, sixth and seventh terms are in...
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<div class="question_type_name">Short answer question</div><p>In the binomial expansion of (x + 1)n, the coefficients of the fifth, sixth and seventh terms are in arithmetic progression. Find all the values of n for which this can happen,</p>
Binomial TheoremSat, 24 Dec 2011 20:44:48 +0000mrs_bakshi7305 at http://cbsenotes.com/notesFind a if the coefficients of x2 and x3 in the expansion of (3 + ax)9 are equal.
http://cbsenotes.com/notes/find-a-if-the-coefficients-of-x2-and-x3-in-the-expansion-of-3-ax9-are-equal
<div class="question_type_name">Short answer question</div><p>Find a if the coefficients of x2 and x3 in the expansion of (3 + ax)9 are equal.</p>
Binomial TheoremSat, 24 Dec 2011 20:44:48 +0000mrs_bakshi7306 at http://cbsenotes.com/notesFor what value of m the coefficients of the (2m + l)th and (Am + 5)th terms, in the expansion of (1 ...
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<div class="question_type_name">Short answer question</div><p>For what value of m the coefficients of the (2m + l)th and (Am + 5)th terms, in the expansion of (1 +x)10, are equal ?</p>
Binomial TheoremSat, 24 Dec 2011 20:44:48 +0000mrs_bakshi7307 at http://cbsenotes.com/notesLet n be a positive integer if the coefficients of 2nd, 3rd, 4th terms in the expansion of (1+x)n ar...
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<div class="question_type_name">Short answer question</div><p>Let n be a positive integer if the coefficients of 2nd, 3rd, 4th terms in the expansion of (1+x)n are in A. P., find the value of n.</p>
Binomial TheoremSat, 24 Dec 2011 20:44:48 +0000mrs_bakshi7308 at http://cbsenotes.com/notesThe first three terms in the expansion of (x +y)n are 1,56 and 1372 respectively. Find the values of...
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<div class="question_type_name">Short answer question</div><p>The first three terms in the expansion of (x +y)n are 1,56 and 1372 respectively. Find the values of x and y.</p>
Binomial TheoremSat, 24 Dec 2011 20:44:47 +0000mrs_bakshi7299 at http://cbsenotes.com/notesThe coefficients of three consecutive terms in the expansion of (1 + x)n are in the ratio of 1 : 7 :...
http://cbsenotes.com/notes/the-coefficients-of-three-consecutive-terms-in-the-expansion-of-1-xn-are-in-the-ratio-of-1-7
<div class="question_type_name">Short answer question</div><p>The coefficients of three consecutive terms in the expansion of (1 + x)n are in the ratio of 1 : 7 : 42, find n and r.</p>
Binomial TheoremSat, 24 Dec 2011 20:44:47 +0000mrs_bakshi7300 at http://cbsenotes.com/notesIn the expansion of (x +y)n, the coefficients of 4th and 13th terms are equal. Find n.
http://cbsenotes.com/notes/in-the-expansion-of-x-yn-the-coefficients-of-4th-and-13th-terms-are-equal-find-n
<div class="question_type_name">Short answer question</div><p>In the expansion of (x +y)n, the coefficients of 4th and 13th terms are equal. Find n.</p>
Binomial TheoremSat, 24 Dec 2011 20:44:47 +0000mrs_bakshi7301 at http://cbsenotes.com/notes