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On comparing the ratios of the coefficie...

On comparing the ratios of the coefficients, find out whether the pair of equations `x – 2y =0` and `3x + 4y -20 =0` is consistent or inconsistent.

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CBSE MODEL PAPER-MATHEMATICS BASIC-PART B
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  7. Given 15 cot A =8, find sin A and sec A.

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  8. Find tan P – cot R

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  9. How many terms of the AP: 9, 17, 25, . . . must be taken to give a sum...

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  10. Prove that sqrt3 is an irrational number

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  14. One card is drawn from a well shuffled deck of 52 cards. Find the prob...

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  15. Metallic spheres of radii 6cm, 8cm and 10cm respectively are melted to...

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  16. Prove that (sinA -cos A+1)/(sin A + cos A - 1) = (1)/(sec A - tan A)

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  17. A motor boat whose speed in still water is 18 km/h, takes 1 hour more ...

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