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For what value of `k` does the system of linear equations `2x+3y=7` and `(k-1)x + (k+2)y =3k` have an infinite number of solutions

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X BOARDS-X Boards-All Questions
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  2. If costheta+sintheta=sqrt(2)costheta, show that costheta-sintheta=sqrt...

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  3. For what value of k does the system of linear equations 2x+3y=7 and ...

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  4. Find the value of k for which x=2 is a solution of the equation kx^2+2...

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  5. Prove that sqrt(5) is irrational.

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  10. If Sn the sum of first n terms of an AP is given by 2n^2+n, then find ...

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  11. If in an AP a=15, d=-3 and an=0. Then find the value of n.

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