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If a-(1//a) = b, b-(1//b) =c and c - (1/...

If `a-(1//a) = b, b-(1//b) =c` and `c - (1//c) = a`, then what is the value of `(1//ab) + (1//bc) + (1//ca)`?
यदि `a-(1//a) = b, b-(1//b) =c` तथा `c - (1//c) = a` है, तो `(1//ab) + (1//bc) + (1//ca)` का मान क्या है?

A

`-3`

B

`-6`

C

`-1`

D

`-9`

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CHAMPION PUBLICATION-2017 TIER-II PAPER(9)-EXERCISE
  1. If x+(1//x)=(sqrt3+1)//2, then what is the value of x^4+(1//x^4) ? ...

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  2. If a+a^2+a^3-1=0, then what is the value of a^3 + (1//a)? यदि a+a^2+...

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  3. If a-(1//a) = b, b-(1//b) =c and c - (1//c) = a, then what is the valu...

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  4. If the roots of the equation a(b - c)x^2 + b(c- a)x+ c(a-b)=0 are equa...

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  5. If [sqrt((a^2+b^2+ab))]+[sqrt((a^2+b^2-ab))] =1, then what is the valu...

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  6. If 3x+ 4y-11 = 18 and 8x- 6y +12 = 6, then what is the value of 5x- 3y...

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  7. If a +b+c=7//12,3a-4b+5c= 3//4 and 7a-11b- 13c= 7//12, then what is th...

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  8. In the given figure, PQ = PS = SR and angleQPS=40^(@). Then what is th...

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  9. In the triangle PQR, C is the centroid. PQ = 30 cm, QR = 36 cm and PR ...

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  10. In the figure, AQ=4sqrt(2)cm,QC=6sqrt(2)cmandAB=20cm. If PQ is paralle...

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  11. In the given figure. If AD = 12 cm, AE = 8 cm and EC = 14 cm, then wha...

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  12. Two circles are having radii 9 cm and 12 cm. The distance between thei...

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  13. Two circles touch each other at point X. Two common tangents of the ci...

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  14. Two circles touch each other at point X, A common tangent touch them a...

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  15. There are 8 equidistant points A, B, C, D, E, F, G and H (in same orde...

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  16. In the given figure, O is the centre of the circle and angle QOR= 50^@...

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  17. There circle C1,C2 and C3 with radii r1,r2 and r3 (where r1 <r2 <r3) a...

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  18. An equilateral triangle of area 300cm^(2) is cut from its three vertic...

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  19. In the given figure, PQR is an equilateral triangle with side as 12cm....

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  20. ABCD is a rectangle P is point on the side AB as shown in the given fi...

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