If the sum of the first m terms of an AP is n and the sum of its n terms is m, then the sum of its (m + n) terms will be
A. m + n
B. -(m + n)
C. m – n
D. 0
Answer:B
If the sum of the first m terms of an AP is n and the sum of its n terms is m, then the sum of its (m + n) terms will be
A. m + n B. -(m + n) C. m – n D. 0