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In an A.P., the 1st term, last term and ...

In an A.P., the 1st term, last term and the sum of all term are 3, 39 and 525 respectively. Then the common difference will be

A

a)3/2

B

b)1

C

c)1/2

D

d)2/3

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UNITED BOOK HOUSE-MODEL QUESTION PAPERS-SET 10-EXERCISE
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  2. In the expansion of (a+b)^15.the co-efficient ofa^8b^7is

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  3. In an A.P., the 1st term, last term and the sum of all term are 3, 39...

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  4. The equation. y^2+2ax+2by+c=0represent the conic

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  5. The perpendicular distance from (2, -1) to the equation 12x - 5y= 3 is

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  6. The domen of the function f(x) = log | log x I is

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  7. The value of lim(xrarr0)(1-cosx)/xis

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  8. A coin is tossed several times.If we get ‘tail’ in 1st three times.the...

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  9. In a room, every body handshake each other. If the number of handshake...

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  10. Using set operation, prove that 3 + 4 = 7.

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  11. Find the domain of defination of the function f(x)=(x+3)/(sqrt(3-2x-x^...

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  12. Calculate the value of sec(-1680^(@)) sin 330^(@).

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  13. In /\ABC, a = 5 cm, b = 7 cm and c = 3 cm. Find its circumradius.

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  14. Find the argument of (-3 - 3i).

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  15. In how many way can give 4 prizes qut of 10 students for which no one ...

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  16. In the expansion of(x^3-1/x^2)^15,find the constant term.

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  17. In an infinite G.P. series sn/soo=1/3,find its common ratio, [simbols ...

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  18. Find the ratio in- which the straight line 3x + 4y = 21 divides the li...

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  19. The cor-ordinate of three consecutive verties of a parallelogram ar (3...

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  20. Differentitate (1/t^3+2sqrtt)with respect to t.

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