if x-1/x=√5 then find the value of x³ -1/x³
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Step-by-step explanation:
x-1/x=√5
x-1=√5x
x=√5x+1
x^3=(√5x+1)^3
x^3=5√5x^3+1+15x^2+3√5x
now find 1/x^3
1/x^3=1/(√5x+1)^3
like this solve this and then subtract both these u will got ur answer ........
hope it will help u
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