1.If a=(3+√5)/2 then find the value of a²+1/a².
2.If (x/y)+(y/x)= -1 then find the value of x³-y³.
3.If both (x-2) and (x-1/2) are factors of px²+5x+8 then show that p=r????
4.For what value of m, x³-2mx²+16 is divisible by (x+2)
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