If n is such that 36 ≤ n ≤ 72, then x = (n2 + 2√n(n + 4) + 16) / (n+ 4√n+ 4) satisfies
Choose the correct choice from the following options:
A) 20 < x < 54 B) 23 < x < 58 C) 25 < x < 64 D) 28 < x < 60 E) None of these
36 ≤ n ≤ 72   x = (n2 + 2√n(n + 4) + 16) / (n+ 4√n+ 4)   Put x = 36,   x = (362 + 2√36(36 + 4) + 16) / (36+ 4√36+ 4)   i.e which is least value for n = 28.   Answer : 28 &lt; x &lt; 60
<result>D</result>
If n is such that 36 ≤ n ≤ 72, then x = (n2 + 2√n(n + 4) + 16) / (n+ 4√n+ 4) satisfies