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If the nth term of an A.P is 2n-4,then w...

If the nth term of an A.P is 2n-4,then which of the follwong is the common differnce?

A

a)-2

B

b)-1/2

C

c)1/2

D

d)2

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UNITED BOOK HOUSE-ANNUAL EXAMINATION QUESTION PAPERS 2014-EXERCISE
  1. A function f : A rarrB, where A={x:-1lexle1} and B={y//1leyle2} is def...

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  2. If the nth term of an A.P is 2n-4,then which of the follwong is the co...

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  3. Value of i^n+i^(n+1)+i^(n+2)+i^(n+3)(where i=sqrt-1)

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  4. If in G.P .,t5:t3=7:9 then t9:t5is

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  6. The distance between z-axis and (3,4,6)is

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  7. If y=sin^2(x/2),then dy/dx is

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  8. If lim(xrarr3)(x^n3^n)/(x-3)=27n,then the value of n is

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  9. A and B be two mutually exclusive events such that P(A)=3/8,P(B)=1/3,,...

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  10. The range of 62,72,44,25,54,9,56,71,27,-13,-3 is

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  11. If A={x:x=3n,n∈z)and B={x:x=6n,n∈z}.then find AcapBand AcupB

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  12. A =(1, 2, 3, 5) and B= {4, 6, 9). Define a relation R from A to B by R...

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  13. Prove that tan54^@=(cos9^@+sin9^@)/(cos9^@-sin9^@)

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  14. If tan15^@=x.then show that x^2+2sqrt3x-1=0

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  15. If omegais an imaginary cube root of unity then prove that (xomega^2+y...

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  16. If number of triangles joining angular points of a n-sided polygon be ...

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  17. Find the term independent of x in the expansion of (x-2/x^2)^15

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  18. Find the sum, if it exists ,of the following infinite G.P:1/3-2/9+4/27...

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