Use Eq. (1.11) on p. 16 to compute a theoretical value of acceleration due to gravity g,...

Use Eq. (1.11) on p. 16 to compute a theoretical value of acceleration due to gravity g, and compare this value with the actual acceleration due to gravity at the Earth’s poles, which is about 0.3% higher than the value reported in Eq. (1.12). Comment on the agreement.