BIONOMIAL EXPANSION | FORM 3 | PAPER 2 QUESTIONS | SECTION A
(ii) Use your expansion to estimate the value of
Correct to one decimal place. (2mks)
Form 3 MathematicsExpand and simplify (3x – y)4. Hence use the first three terms of the expansion to approximate the value of (6-0.2)4 ( 4 marks)
Answer
Form 3 Mathematics
(a) Expand the expression (1 + 1/2 x)5 in ascending powers of x, leaving the coefficients as fractions in their simplest form.
(b) Use the first three terms of the expansion in (a) above to estimate the value of (1 1/20)5
answer
Form 3 Mathematics
(a) Expand (1 + x)5
(b) Use the first three terms of the expansion in (a) to find the approximate value of (0.98)5
Answer
Form 3 Mathematics
Use the expansion of (x — y)5 to evaluate (9.8)5 correct to 4 decimal places.
answers
Form 3 Mathematics
Expand (3 - x)1 up to the term containing x4. Hence find the approximate value of (2.8)7.
answer
Form 3 Mathematics
a) Expand and simplify the binomial expression (2 – x)6 (2mks)
b) Use the expansion up to the term in x2 to estimate 1.996 (2mks)
Answer
Form 3 Mathematics
(a) expand (1 − ?)5
(b) Use the expansion in (a) up to the term in x3 to approximate the value of (0.98)5
answer
Form 3 Mathematics
(a) Expand (1 + x)7 up to the 4th term.
(b) Use the expansion in part (a) above to find the approximate value of (0.94)7
answer
Form 3 Mathematics
a) Expand (a – b)6
b) Use the first three term of the expansion in a (a) to find the approximate value of (1.98)6
Answer
Form 3 Mathematics
(a) Expand and simp1ify (2 —x)5. (b) Use the first 4 terms of the expansion in part
(a) above to find the approximate value of (1.8)5 to 2 decimal places.
answers
Form 3 Mathematics
a) Expand and simplify the binomial expression (2 –x)7 in ascending powers of x.
b) Use the expansion up to the fourth term to evaluate (1.97)7 correct to 4 decimal places
answer
Form 3 Mathematics
The nth term of a sequence is given by 2n+3
Sn = n2 +4n
Answer
Form 3 MathematicsExpand (2 + x)5 in ascending powers of x up to the term in x3. Hence, approximate the value of (2.03)5 to 4 s.f.
Answers
Form 3 MathematicsExpand (1 + x)5, hence, use the expansion to estimate (1.04)5 correct to 4 decimal places
Answer
Form 3 MathematicsUse binomial expression to evaluate (0.96)5 correct to 4 significant figures
answer
Related QuestionsFree 1998 K.C.S.E Mathematics Topical Question & Answers Paper 2
ANSWER
Expand and simplify ( 1 – 3x)5, up to the term in x3
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