Use double integration to calculate the area that liew between the curves

This is what i have done , between the limits on the y = a-x and y = 0 and for x = a and 0 But according to my text book the answer is

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- May 2nd 2011, 10:32 AMadam_leedsDouble Integration
Use double integration to calculate the area that liew between the curves

This is what i have done , between the limits on the y = a-x and y = 0 and for x = a and 0 But according to my text book the answer is - May 2nd 2011, 10:45 AMTheEmptySet
- May 2nd 2011, 10:48 AMTKHunny
Where did you get y = 0? Why not use the first equation?

We probably should establish, due ot the first constraint, that a >= 0. - May 7th 2011, 11:32 AMadam_leeds
- May 7th 2011, 11:48 AMTheEmptySet
- May 7th 2011, 11:52 AMadam_leeds
Missed a negative, thanks.