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Chapter 4 Methods of Induction and Binomial Theorem Ex 4.3

Chapter 4 Methods of Induction and Binomial Theorem Ex 4.3

Question 1.
In the following expansions, find the indicated term.

Solution:

Solution:

Solution:

Solution:

Question 2.
In the following expansions, find the indicated coefficients.

Solution:

Solution:

Solution:

Solution:

Solution:

Question 3.
Find the constant term (term independent of x) in the expansion of

Solution:

Solution:

Solution:

Solution:

Solution:

Question 4.
Find the middle terms in the expansion of

Solution:

Solution:

Solution:

Solution:

Solution:

Question 5.
In the expansion of (k + x)⁸, the coefficient of X⁵ is 10 times the coefficient of X⁶. Find the value of k.
Solution:

Question 6.
Find the term containing X⁶ in the expansion of (2 – x) (3x + 1)⁹.
Solution:

Question 7.