Find the sum of m terms of an a p, a-3d,a-2d,a-d,a,a+d,a+2d - Maths - Arithmetic Progressions

Question

Find the sum of m terms of an a p, a-3d,a-2d,a-d,a,a+d,a+2d

Ankita Agarwal · Accepted Answer

Dear Student,

Given AP is a-3d, a-2d, a-d, a, a+d, a+2dSum of n terms of an AP= n22a+n-1dSum of m terms of an AP= m22a-3d+m-1dSum of m terms of an AP= m22a-6d+md-dSum of m terms of an AP=m22a-7d+mdSum of m terms of an AP=m22a+m-7d

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Find the sum of m terms of an a.p, a-3d,a-2d,a-d,a,a+d,a+2d....