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If a=1+2+4+… to n terms, b=1+3+9… to n ...

If `a=1+2+4+…` to n terms, `b=1+3+9…` to n terms and `c=1+5+25+…` to n terms, then the value of `|(a, 2b,4c),(2,2,2),(2^(n),3^(n),5^(n))|` is -

A

`(30)^(n)`

B

`(10)^(n)`

C

0

D

`2^(n)+3^(n)+5^(n)`

Text Solution

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The correct Answer is:
C
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CHHAYA PUBLICATION-MCQ ZONE -Question Paper 2
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  3. If a=1+2+4+… to n terms, b=1+3+9… to n terms and c=1+5+25+… to n term...

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  8. If A=((-1,0),(0,2)) then the value of A^(3)-A^(2) is equal to -

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  9. If 1, omega,omega^(2) are the cube roots of unity then the vlue of m f...

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  10. If A=[(-x,-y),(z,t)], then the transpose of adj A is -

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  12. The solutions of the equation |(x,2,-1),(2,5,x),(-1,2,x)|=0 are -

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  17. If the diagonals of a parallelogram are 3hati+hatj-2hatk and hati-3hat...

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  18. Let PQRS be a parallelogram whose diagonals PR and QS intersect at O'....

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  19. If f(x)=(2x+1)/(3x-2), then (fof)(2) is equal to -

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  20. The relation R is defined on the set of natural numbers N as x is a f...

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