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Solve sqrt(5)x^(2) + x + sqrt(5)=0...

Solve `sqrt(5)x^(2) + x + sqrt(5)=0`

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OSWAAL PUBLICATION-SOLVED PAPER 2018-2-EXERCISE
  1. Prove that cos 3x=4 cos ^3x-3cos x

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  2. Represent the complex number Z = (1)/(1 + i) in the polar form.

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  3. Solve sqrt(5)x^(2) + x + sqrt(5)=0

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  4. Find the number of arrangements of the letters of the word INDEPENDENC...

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  5. Find the number of arrangements of the letters of the word INDEPENDEN...

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  6. Find the middle term in the expansion of ((x)/(3)+9y)^(10)

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  7. Insert five numbers between 8 and 26 such that the resulting sequence ...

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  8. Find the sum of the sequence 7,77,777,7777,…….n terms

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  9. Find the equation of the parabola which is symmetric about y-axis, and...

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  10. Find the derivative of (tanx) w.r.t x from first principal method ?

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  11. Veryfy by the method of contradiction that sqrt 7 is an irrational

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  12. A bag contains 9 discs of ehich 4 are red,3 are blue and 2 are yellow....

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  13. A bag contains of discs of which are red ,3 are blue and 2 are yell...

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  14. A bag contains 9 discs of which 4 are red 3 are blue and 2 are yellow....

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  15. A die is thrown. Find the probability that (i) A prime number will a...

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  16. A die is thrown.Write the sample space.Also find the probability of th...

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  17. A die is thrown, find the probability of following events: (i) A pri...

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  18. Define a modulus function . Draw its graph. Also write down its domai...

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  19. ((sin 7x + sin 5x ) +(sin 9x + sin 3x))/( (cos 7x + cos 5x ) + (cos 9x...

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  20. 1^(2)+2^(2)+3^(2)+............+n^(2)=(n(n+1)(2n+1))/6 forall n in N.

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