Page 44 - Math SL HB Sem 1
P. 44
9 Find the term containing xl0 in the expansion of(5 + 2x2)7.
Cfotal6 marks)
10. Complete the following exparsion-
(2+ ax)a: 16+32ax+...
(Total 6 marks)
I l. Find the term containing x3 in the expansion of(2 - 3x)8.
(Total6 marks)
12. Consider the expansion of(x2 - 2)5.
(a) Write down the number of terms in this expansion.
(b) The first four terms ofthe expansion in descending powers ofx are
,lo- lor8+4016 +*a +...
Find the value ofl.
(Total 6 marks)
2
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