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Find the middle term in the expansions of `(3 - x^3/6)^7`

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OSWAAL PUBLICATION-SOLVED PAPER 2020-1-EXERCISE
  1. find general solution sin x + sin 3x + sin 5x =0

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

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  3. Find the middle term in the expansions of (3 - x^3/6)^7

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

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  5. The sum of first three terms of a G.P. is 13/12 and their product is –...

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  6. Find the centre and radius of the circle x^(2)+y^(2)-4x-8y-45=0 ?

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  7. Differentiate of sin x w.r.t. x from first principles

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  8. Verify by the method of contradiction that sqrt7 is irrational number

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  9. A committee of two persons is selected from two men and two women. Wha...

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  10. A committee of two persons is selected from two men and two women. Wha...

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  11. A committee of two persons is selected from two men and two women.What...

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  12. If E and F are two events such that P(E)=1/4, P(E)=1/2 and P(E and F)=...

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  13. If E and F are two events such that P(E)=1/4, P(E)=1/2 and P(E and F)=...

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

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  15. 1^(2)+2^(2)+3^(2)+..........+n^(2)=(n(n+1)(2n+1))/(6)

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  16. Prove that cos^(2)+x+cos^(2) (x+pi/3)+cos^(2)(x-pi/3)=3/2 and hence fi...

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  17. Solve the following system of inequalities graphically x+2yle8,2x+yle8...

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  18. A group consists of 5 girls and 7 boys.In how many ways can a team of ...

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  19. A group consists of 4 girls and 7 boys. In how many ways can a team of...

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  20. State and prove Bionomial theorem for any positive integer n.

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