Question

A. The Coeeficient of x^90 in the equation
$(x + {x}^{2} + {x}^{3} + .... + {x}^{60} )(x + {x}^{2} + {x}^{3} + ..... + {x}^{2019} )$
is ????
B. The Value of
$\frac{2x + 1}{x + 1}$
where value of x is more than 5
Please give step by step solution


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Answer 1

Step-by-step explanation:

B) suppose x=6

2×6+1/6+1

12+1/7

13/7

1.857

Answer 2

Answer:

A. 60 is the co-efficient.

It's like x^1*x^89+x^2*x^88........................+x^89*x^1

B. 2*5+1/5+1=11/6=1.833333

ans>1.8333

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