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## Homework Statement:

- I'm new to this website. Could someone explain how to solve this equation, its the formula for an ellipse circumference :

## Homework Equations:

- P = 2a(pi){1-(1/2)^2[(sqrta^2b^2)/a]^2- [(1*3)/(2*4)]^2{[(sqrta^2b^2)/a]/3}^4.....}

Substituting :

a = (9.15x10^7 mi)+(9.45x10^7mi) = 1.86x10^8 mi

b = ( a/2 ) = 9.3x10^7 mi

For this, I used six terms and got :

1.075x10^9 miles

Is my math wrong?

;

a = (9.15x10^7 mi)+(9.45x10^7mi) = 1.86x10^8 mi

b = ( a/2 ) = 9.3x10^7 mi

For this, I used six terms and got :

1.075x10^9 miles

Is my math wrong?

;