Question

A- 1/A=7 then A²+ 1/A² =?​

Answer 1

Answer:

hey mate there's your answer

A-1/A=7

(A -1/A)^2=(7)^2

A^2 -2 A .(1/A). +(1/A)^2=49

A^2-2+1/A^2 = 49

A^2+1/A^2=49+2

A^2+1/A^2=51

hope it helps you......

Thank you!!!