Answer:
11
Step-by-step explanation:
1/2 ( 4^2 + √25 + 1)
= 1/2 (16 + √25 + 1)
= 1/2 ( 16 + 5 + 1)
= 1/2 ( 21 + 1)
= 1/2 (22)
= 1/2 x 22/1
= 22/2
= 11/1 = 11
