1.

Observe the following pattern:13 = 113 + 23 = (1 + 2)213 + 23 + 33 = (1 + 2 + 3)2Write the next three rows and calculate the value of 13 + 23 + 32 +.........+93 + 103 by the above pattern.

Answer»

According to given pattern,

 = 13 + 23 + 32 + ......+n3) = (1 + 2 + 3 + ......+ n)2

Here n = 10, so,

 = (13 + 23 + 32 + .....+ 93 + 103) = (1 + 2 + 3 +.......+9 + 10)2

  = (13 + 23 + 33 +......+ 93 + 103) = (552) = 55x55 = 3025.



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