[K2] If 1+2+...+n = K then 13 + 23 + ... +n3 is equal to(c) K(K+1)/2

For Competitive Exams

10th CBSE Maths

If 1+2+...+n = K then 1³ + 2³ + ... +n³ is equal to
(c) K(K+1)/2

K²

K³

(K + 1)³

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