}} 20 a) Find r(4r-1) and hence, evaluate r(4r-1). b) Use binomial theorem the expand (x+3)...

 

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}} 20 a) Find r(4r-1) and hence, evaluate r(4r-1). b) Use binomial theorem the expand (x+3) in ascending power of x, up to the term of x. c) Based on the expansion in b) above, find the approximation value of (3.1). Give your answer up to 4 decimal places. r=1 r=6 }} 20 a) Find r(4r-1) and hence, evaluate r(4r-1). b) Use binomial theorem the expand (x+3) in ascending power of x, up to the term of x. c) Based on the expansion in b) above, find the approximation value of (3.1). Give your answer up to 4 decimal places. r=1 r=6