Question

if(a-1/a)= root 5 find the values of(a+1/a),(a^3+1/a^3)​

Answer 1

Answer:

3,. 18

Step-by-step explanation:

(a-1/a)=√5

squaring both side

(a+1/a)=3

(a^3+1/a^3)=(a+1/a)(a^2+1/a^2-1)

= 3×6=18

Answer 2

Answer:

3,18

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