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If in the expansion of (1+x)^(n) the co...

If in the expansion of `(1+x)^(n) ` the coefficient of 2nd, 3rd and 4th terms are in A.P., then the value of n is-

A

5

B

7

C

6

D

8

Text Solution

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The correct Answer is:
B
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CHHAYA PUBLICATION-MCQ's-QUESTION PAPER 5
  1. Two roots of the quadratic equation x^(2) +(i -5)x +18 +i =0 are -

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  2. The digit in the unit's place of the number [(183)! +3 ^(183)] is-

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  3. If in the expansion of (1+x)^(n) the coefficient of 2nd, 3rd and 4th ...

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  4. If 2(1- x) ge 3x+17, state which of the following true-

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  5. In a distribution, coefficient of variation =5% and variance =4, then ...

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  6. If a straight line passing through the focus of the parabola x ^(2) =4...

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  7. If thte equation 3y^(2)+6y-5x-7=0 reduces to the form y ^(2) =ax when...

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  8. The line-segment the points (3,4) and (2,-3) is divided by x-axis in t...

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  9. Find the area of the triangle formed by the lines y - x = 0, x + y = 0...

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  10. C is a point on the line-segment joining the points A (2,-3,4) and B(8...

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  11. If lx+my+n=0 is the perpendicular bisector of the segment of line join...

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  12. The radius of the circle x ^(2) +y^(2) +4x+6y+13=0 is-

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  13. The two circles x ^(2)+y^(2)-2x +22y +5=0 and x ^(2) + y^(2) +14 x+6y ...

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  14. The image of the origin with reference to the line 4x+3y=25 is -

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  15. Lex x is even natural number less than 12, then domain of the relation...

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  16. If the circles x ^(2) +y^(2) +2ax+cy+a=0 and x ^(2) +y^(2) -3ax+dy-1=0...

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  17. The lines parallel ot the x-axis and passing through the intersection ...

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  18. The ratio in which the straight line joining points (3,5,-7) and (-2, ...

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  19. Which one of the following points is the nearest poit on the line 3x-4...

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  20. x+y=6 and x+2y=4 are two diameters of a circle. If the circel passes t...

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