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The n^(th) term of an A.P. cannot be n^(...

The `n^(th)` term of an A.P. cannot be `n^(2)+ 1`. Justify the statement.

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AGRAWAL PUBLICATION-SAMPLE PAPER 5-EXERCISE
  1. Find irrational number between 2 and 3.

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  2. Reduce the equation y(2y + 15) = 3(y^(2) + y + 8) to the standard form...

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  3. The n^(th) term of an A.P. cannot be n^(2)+ 1. Justify the statement.

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  4. Check whether x = 2 and y = 3 the solution of the pair of linear equat...

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  5. Find the distance between (7,0) and (1, - 8).

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  6. A line of length 10 units has one end at the point (-3,2). If the ordi...

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  7. If Delta ABC ~ Delta DEF, such that angle A = 47 ^(@) and angle E = 83...

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  8. Find the zeros of 2x^(2) - x - 45.

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  9. If cot A +(1)/( cot A) =2 , then cot^2 A + (1)/( cot^2 A) is eq...

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  10. If sin A = (1)/(2) then what is the value of (cot A -cos A)?

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  11. From a group of 4 girls and 6 boys, a child is selected. Find the prob...

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  12. What is the perimeter of a quadrant of a circle of radius 'r' ?

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  13. The total surface area of a solid hemisphere of radius r is

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  14. Tow coins are tossed simultaneously. Find the probability of getting a...

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  15. A cubic polynomial can have at most how many zeros?

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  16. Write the nature of roots of the quadratic equation a x^(2) - 3bx - 4a...

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  17. State the AA criterion of similarity of triangles.

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  18. If in DeltaABC,angleB=90^(@),AB=6sqrt3 and AC=12cm, find BC.

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  19. From a point Q, the length of the tangent to a circle is 12 cm and dis...

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  20. Satellite TV manufacturing businesses tend to have what economists cal...

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