Question

if k+ 1/k = 4 , find the value of k²+ 1/k²​

Answer 1

Answer:

14

Step-by-step explanation:

k+1/k=4 then,

(k+1/k)^2=4^2

k^2+(1/k)^2+2.k.1/k=16

k^2+(1/k)^2=16-2

k^2+(1/k)^2=14

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