Question

if tn = n square +4 , then find t2​

Answer 1

$t(n) = n {}^{2} + 4$

$n - n {}^{2} = 4$

$t = \sqrt{4}$

$t = 2$

$now \: t(2) = 2(2) = 4$

Answer 2

Answer:

t(n) = n {}^{2} + 4t(n)=n

2

+4

n - n {}^{2} = 4n−n

2

=4

t = \sqrt{4}t=

4

t = 2t=2

now \: t(2) = 2(2) = 4nowt(2)=2(2)=4