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If p be the length of the perpendicular ...

If p be the length of the perpendicular from the origin on the line `x/a+y/b=1`, then

A

`p^2=a^2+b^2`

B

`p^2=1/a^2+1/b^2`

C

`1/p^2=1/a^2+1/b^2`

D

none of these

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JBD PUBLICATION-MODEL PAPER (11)-EXERCISE
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  3. If p be the length of the perpendicular from the origin on the line x/...

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  8. If tan3A=(3 tan A+k tan^(3)A)/(1-3 tan^(2)A), then k is equal to

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  9. Evaluate: [i^20+(1/i)^26]^3.

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  11. Write the general term in the expansion of (x^(2)-yx)^(12), x ne 0

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  13. Verify by the method of contradiction that sqrt7 is irrational.

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  15. Assume that P(A) = P(B). Show that A = B

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  17. Prove that : sin (A + B) sin (A - B) = sin^2A- sin^2B.

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  18. Using principle of mathematical induction, prove that: 1/1.2.3+1/2.3.4...

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