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If |vec(a)| = 3, |vec(b) = 4 and |vec(a)...

If `|vec(a)| = 3, |vec(b) = 4` and `|vec(a) + vec(b)| = 1`, then `|vec(a) - vec(b)| =`

A

5

B

6

C

7

D

8

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The correct Answer is:
C
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KCET PREVIOUS YEAR PAPERS-MODEL TEST PAPER 9-Mathematics
  1. If |vec(a) + vec(b)| = |vec(a) - vec(b)| then

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  2. If |vec(a)| = 5, |vec(b)| = 6 and the angle between vec(a) and vec(b) ...

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  3. If |vec(a)| = 3, |vec(b) = 4 and |vec(a) + vec(b)| = 1, then |vec(a) -...

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  4. {:(" "Lt),(x rarr 0):} [(x)/(sqrt(1+x)-sqrt(1-x))] =

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  5. If y = sin x^(0), (dy)/(dx) =

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  6. If y = tan^(-1)((x+a)/(1-xa)) then (dy)/(dx) =

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  7. If x^(y) = e^(x-y), (dy)/(dx) =

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  8. If x = a(cos theta + theta sin theta), y = a (sin theta - theta cos th...

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  9. The length of the sub - tangent to the curve x^(m)y^(n) = a^(m+n) at a...

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  10. The distance s feet travelled by a particle in time t seconds is given...

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  11. The angle between the curves xy = 2 and y^(2) = 4x at their point of ...

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  12. A point of inflection of the curve y = e^(-x^(2)) is

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  13. In what ratio should a given line be divided into a parts so that’s th...

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  14. int""(1)/(1-cosx)dx=

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  15. int log x dx=

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  16. What does this equation x^2 - 4y^2 - 2x + 16y - 40 =0 represent?

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  17. The locus of the centre of a circle which touches externally two given...

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  18. The eccentricity of the hyperbola 4x^(2) - 9y^(2) - 8x - 32 = 0 is

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  19. The eccentricity of the rectangular hyperbola is

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  20. If x^(pq) = (x^(p))^(q) , then p =

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