What approximate value should come in place of the question mark (?) in the following equation (Note: You are not expected to calculate the exact value)?
[(7.99)2–(13.001)2+(4.01)3]2=?
A) -1800
B) 1450
C) -1660
D) 1660
Answer: D) 1660
Explanation:
[(7.99)^2–(13.001)^2+(4.01)^3]^2= X X= [8^2-13^2+4^3]^2 X= [64-169+64]^2 X= [-41]^2 X=1681