Question

If a^2+1/a^2=14 find a^4+1/a^4

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

By using theorem (a+b) ^2 = a^2 +2ab + b^2

(a^2 + 1/a^2) ^2 = a^4 + 1/a^4 + 2*a^4*1/a^4

14^2 = a^4 + 1/a^4 + 2

196 - 2 = a^4 + 1/a^4

194 = a^4 + 1/a^4

Step-by-step explanation:

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