Question

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(x+(1/x))^2

plese

Answer 1

Answer is 57

for this you can use

f(n+1)=f(n)+2n

or

f(n)=f(n-1)+2(n-1)

where n is position of number

1 is at 1st position so

f(1)=1

1+2*1=3

next number is 3 which is at second position:

3+2*2=7

next no is 7

7+2*3=13

similarly

43+2*7=57

Step-by-step explanation:

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