Question

if a+1/a=8 then find the value of a^6+1/a^6​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

-1

Step-by-step explanation:

First, multiply both sides by a to get rid of a in the denominator:

a-1 = (8a)/3

Multiply both sides by 3:

3a-3 = 8a

Subtract 3a from both sides:

5a = -3

Divide by 5:

a = -3/5

We’ll check our answer by substituting for a in the original equation, but this will work better if we convert -3/5 to its decimal form of -0.6

(-0.6–1)/-0.6 = 8/3

(-1.6)/-0.6 = 8/3

2.66 = approximately 8/3 (2.66 repeats without terminating).

((a^6)+1/(a^6) =

a^6 = 0.46656

-0.46656 / 0.46656 = -1