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Circles with centres P,Q& S are touching...

Circles with centres P,Q& S are touching each other externally as shown in the figure at points A, B & C. If radii of circles with cenres P, Q & S are 1,2 and 3 respectivelu then the length of chord AB is `"_______"`

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The correct Answer is:
`sqrt(2)`
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RESONANCE ENGLISH-DPP-QUESTION
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  2. If sum(i=1)^(7) i^(2)x(i) = 1 and sum(i=1)^(7)(i+1)^(2) x(i) = 12 and ...

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  3. Circles with centres P,Q& S are touching each other externally as show...

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  5. Let P = underset(r=1)overset(50)sum(.^(50+r)C(r)(2r-1))/(.^(50)C(r)(50...

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  6. Let P = underset(r=1)overset(50)sum(.^(50+r)C(r)(2r-1))/(.^(50)C(r)(50...

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  7. The sum sum(r=0)^(n) (r+1) (""^(n)C(r))^(2) is equal to

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  8. In the binomial expansion of (a-b)^nngeq5, the sum of the 5th and 6th ...

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  9. Let P = underset(r=1)overset(50)sum(.^(50+r)C(r)(2r-1))/(.^(50)C(r)(50...

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  10. Let P = underset(r=1)overset(50)sum(.^(50+r)C(r)(2r-1))/(.^(50)C(r)(50...

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  11. Let P = underset(r=1)overset(50)sum(.^(50+r)C(r)(2r-1))/(.^(50)C(r)(50...

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  12. underset(r=0)overset(n)(sum)(-1)^(r).^(n)C(r)[(1)/(2^(r))+(3^(r))/(2^(...

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  14. The figure shows a rectangle ABCD with a semi-circle and a circle insc...

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  18. Which of the following equations have no real solutions ?

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  19. The solution set satisfying the inequality,sqrt(21-4a-a^2)/(a+1)<=1

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  20. Solve the equation: |x+1|-|x|+3|x-1|-2|x-2|=x+2

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