10 the polynomial p (x is equal to) a square + 4 + x square + 13 x + 4a is reciprocal of the other then find the value of a
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let one zero be α then the other will be 1/α
clearly from the above step we can see that the product of the roots is 1 so c/a=1
4k/k²+4=1
4k=k²+4
k²-4k+4=0
(k-2)(k-2)
hence k=2
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