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The sum of first n terms of an arithmeti...

The sum of first n terms of an arithmetic sequence is `n^2+2n`
Prove that the sum of continuous terms starting from the first of the sequence 3,5,7,..... added to 1 gives a perfect square.

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MAXIMUM PUBLICATION-MODEL PAPER 20-EXAMPLE
  1. The sum of first n terms of an arithmetic sequence is n^2+2n Find the ...

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  2. The sum of first n terms of an arithmetic sequence is n^2+2n What is t...

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  3. The sum of first n terms of an arithmetic sequence is n^2+2n Prove t...

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  4. In the triangle, angleP=45^o, angleR=5sqrt2 centimetres. What is the...

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  5. In the triangle, angleP=45^o, angleR=5sqrt2 centimetres. What is the...

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  6. In the triangle, angleP=45^o, angleR=5sqrt2 centimetres. If the rati...

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  7. The length of a rod is 56 centimetres. It is bent into a rectangle.Wha...

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  8. The length of a rod is 56 centimetres. It is bent into a reactangle. ...

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  9. In the figure, S,R are the centres of the circles and PA,PB are common...

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  10. In the figure, S,R are the centres of the circles and PA,PB are common...

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  11. In the figure, S,R are the centres of the circles and PA,PB are common...

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  12. A box contains 6 red beads and 5 white beads. Another box contains 8 r...

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  13. A box contains 6 red beads and 5 white beads. Another box contains 8 r...

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  14. A box contains 6 red beads and 5 white beads. Another box contains 8 r...

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  15. A box contains 6 red beads and 5 white beads. Another box contains 8 r...

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  16. In the figure, coordinates of two vertices of a rhombus are A(-1,2) an...

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  17. In the figure, coordinates of two vertices of a rhombus are A(-1,2) an...

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  18. In the figure, coordinates of two vertices of a rhombus are A(-1,2) an...

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  19. If P(x)=3x^2-5x+7,then What number is P(2)?

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  20. If P(x)=3x^2-5x+7,then Write the polynomial got by subtracting P(2) fr...

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