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Find r, if 5 xx ""^(4)P(r) = 6 xx ""^(5)...

Find r, if `5 xx ""^(4)P_(r) = 6 xx ""^(5)P_(r - 1)`.

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OSWAAL PUBLICATION-SOLVED PAPER 2018-1-EXERCISE
  1. Solve sqrt 2x^2+x+sqrt 2=0

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  2. If ((1+i)/(1-i))^(m)=1, then find the least positive integral value of...

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  3. Find r, if 5 xx ""^(4)P(r) = 6 xx ""^(5)P(r - 1).

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

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  5. In an A.P if m^(th) term is n and n^(th) term is m, where mnen, find t...

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

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  7. Find the coordinates of the vertices, length of the latus rectum and e...

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  8. Compute the derivative of sinx using first principal method ?

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  9. Verify by the method of contradiction P: sqrt(5) is irrational.

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

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

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

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  13. Out of 100 students,two sections of 40 and 60 are formed.If you and yo...

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  14. Draw the graph of the signum function write its domain and range.

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  15. Prove that : (sin 5x-2sin3x+sinx)/(cos5x-cosx)=tanx

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  16. 1.2+2.3+3.4+…………..+n(n+1)=n/3(n+1)(n+2) forall n in N.

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  17. Solve the following system of inequalities graphivally 2x+y>+4,x+yle3,...

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  18. What is the number of ways of choosing 4 cards from a pack of 52 cards...

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  19. What is the number of ways of choosing 4 cards from a pack of 52 cards...

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