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The sum of two numbers is 6 times their ...

The sum of two numbers is 6 times their G.M. show that numbers are in the ratio `3+2sqrt2: 3-2sqrt2`.

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JBD PUBLICATION-MODEL PAPER (3)-EXERCISE
  1. Show that: sn10^@+sin20^@+sin40^@+sin50^@=sin70^@+sin80^@

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  2. Prove by the principle of mathematical induction: 1+2+3+……..+n<1/8(2n+...

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  3. How many 3-digit even numbers can be made using the digits 1, 2, 3, 4,...

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  4. How many chords can be drawn through 21 points on a circle?

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  5. The sums of n terms of two arithmetic progressions are in the ratio 5n...

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  6. The sum of two numbers is 6 times their G.M. show that numbers are in ...

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  7. Reduce the following equations of the line to slope intercept form and...

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  8. Reduce the following equations of the line to slope intercept form and...

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  9. Reduce the following equations of the line to slope intercept form and...

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  10. Verify that the locus of a point P which moves so that the sum of its ...

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  11. Differetiate the function:[(x+2)(1-3x)]/(2x+1),x ne -1/2 w.r.t.x.

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  12. Letters of the word "EDUCATION" are rearranged. Find the probability t...

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  13. Convert the following in the polar form : (1+7i)/(2-i)^2.

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  14. Solve the following equation :- x^2 + x/sqrt2+1 = 0

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  15. Find all pairs of consecutive even positive integers, both of which ar...

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  16. Solve the inequalities given below:- 7le ((3x+11))/2le11

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  17. Solve the following inequalities: -15 le (3(x-2))/5 le 0

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  18. Evaluate: underset(xrarrsqrt2)lim (x^9-3x^8+x^6-9x^4-4x^2-16x+84)/(x^5...

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  19. Find the derivative of (ax + b)^n

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  20. Coefficient of variation of two distributions are 60% and 70% and thei...

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