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Chose the correct option If the vecto...

Chose the correct option
If the vector `oversetrarrahati + 0.8hatj + 0.06hatk` is said to be unit vector, the value of a is.

A

1

B

-1.4

C

0

D

`frac(1)(2)`

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CHETANA PUBLICATION-MATHEMATICAL METHODS-EXERCISE
  1. Chose the correct option vector 2hati + 3hatj -7hatk and hati + mha...

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  2. Chose the correct option If (oversetrarra + oversetrarrb) is maximu...

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  3. Chose the correct option If the vector oversetrarrahati + 0.8hatj +...

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  4. Chose the correct option When 2 vectors oversetrarra and oversetrarr...

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  5. Chose the correct option If a vector has magnitude5, its components...

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  6. Chose the correct option Two forces of magnitude 7N and 5N act on a...

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  7. Chose the correct option A force oversetrarrF = (2hati- 10hatj + 12...

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  8. Chose the correct option The force acting on a body of mass m, prod...

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  9. Chose the correct option The value of (oversetrarrA + oversetrarrB)...

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  10. Chose the correct option The angle between (hati + hatj) and (hatj ...

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  11. Chose the correct option The resultant of two vectors oversetrarrp ...

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  12. Chose the correct option The angle between oversetrarra and the re...

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  13. Chose the correct option oversetrarrp and oversetrarrq are two vect...

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  14. Chose the correct option If y= x^2 + 2x, then frac(dy)(dx) at x= 4...

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  15. Chose the correct option The displacement s of a particle is expres...

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  16. Chose the correct option The value of the integral int2^3 x^2 dx is

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  17. Chose the correct option int0^(pi//2) sin theta d theta is equal to

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  18. Chose the correct option int0^(pi//2) oversetrarra.oversetrarrb d ...

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  19. Chose the correct option The resultant of 2 forces 10N and 15N acting...

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  20. Chose the correct option For 2 vectors to be equal, they should have

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