Question

if a+ 1/a=16 then find a²+1/a²​

Answer 1

Answer:

${a}^{2} + { \frac{1}{a} }^{2} = 254$

Step-by-step explanation:

Using the formula of (x+y)^2 :

${(a + \frac{1}{a} )}^{2} = {a}^{2} + { \frac{1}{a} }^{2} + 2(a) \frac{1}{a}$

${a}^{2} + { \frac{1}{a} }^{2} = {16}^{2} - 2$

${a}^{2} + { \frac{1}{a} }^{2} = 254$

Answer 2

Answer:

256

Step-by-step explanation:

just transpose (I don't even know if I'm right )