Question

if a+1/a=4 then the value of a2+1/a2​

Answer 1

Answer:

A+1/a=4

squaring both sides we get

a2+1/a2+2*a*1/a=16

a and 1/a will cancel out each other so we are left with

a2+1/a2+2=16

a2+1/a2=14

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