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​Observing the pattern 13 + 23 + 33 = (1 + 2 + 3)2, 13 + 23 + 33 + 43 = (1 + 2 + 3 + 4)2 , Find the sum: 
  • a)
    1225
  • b)
    2025
  • c)
    825
  • d)
    1625
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
​Observing the pattern 13+ 23+ 33= (1 + 2 + 3)2, 13+ 23+ 33+ 43=...
13 + 23 + 33 + …… + 9= (1 + 2 + 3 …… + 9)2
⇒ (13 + 33 + 53 + 73 + 93) + 23 (13 + 23
+ 33 + 43)
= (45)2 = 2025
⇒ x + 23 (1 + 2 + 3 + 4)2 = 2025
⇒ x = 2025 – 8 × 100 = 1225 
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​Observing the pattern 13+ 23+ 33= (1 + 2 + 3)2, 13+ 23+ 33+ 43= (1 + 2 + 3 + 4)2, Find the sum:a)1225b)2025c)825d)1625Correct answer is option 'A'. Can you explain this answer?
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​Observing the pattern 13+ 23+ 33= (1 + 2 + 3)2, 13+ 23+ 33+ 43= (1 + 2 + 3 + 4)2, Find the sum:a)1225b)2025c)825d)1625Correct answer is option 'A'. Can you explain this answer? for Class 8 2024 is part of Class 8 preparation. The Question and answers have been prepared according to the Class 8 exam syllabus. Information about ​Observing the pattern 13+ 23+ 33= (1 + 2 + 3)2, 13+ 23+ 33+ 43= (1 + 2 + 3 + 4)2, Find the sum:a)1225b)2025c)825d)1625Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 8 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for ​Observing the pattern 13+ 23+ 33= (1 + 2 + 3)2, 13+ 23+ 33+ 43= (1 + 2 + 3 + 4)2, Find the sum:a)1225b)2025c)825d)1625Correct answer is option 'A'. Can you explain this answer?.
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