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.7.Find the value of Kif K2 + 4k+8.2k23k +6.3k? + 4k +4 are in A.P. |
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Answer» a2-a1=a3-a22k^2+3k+6 - (k^2+4k+8). =3k^2+4k+4-(2k^2+3k+6)2k^2-k^2+3k-4k+6-8 =3k^2+4k+4-2k^2-3k-6k^2-k-2=k^2+k-2-k-k=-2+2-2k=0k=0 |
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