Q14.PLEASE SOLVE THE PROBLEM
MARK IT AS BRAINLIEST
VERY EASY
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(14)..(1)..
;(x-1/x)^2=x^2+1/x^2 -2×x×1/x
;(x-1/x)^2=51-2
;x-1/x=√49
;x-1/x=7. ans
(2)..
x^3-1/x^3=(x-1/x)(x^2+1/x^2+x×1/x)
;x^3-1/x^3=(7)(x^2+1/x^3)
;x^3-1/x^3=(7)(51)
;x^3-1/x^3=357
is your answer
;(x-1/x)^2=x^2+1/x^2 -2×x×1/x
;(x-1/x)^2=51-2
;x-1/x=√49
;x-1/x=7. ans
(2)..
x^3-1/x^3=(x-1/x)(x^2+1/x^2+x×1/x)
;x^3-1/x^3=(7)(x^2+1/x^3)
;x^3-1/x^3=(7)(51)
;x^3-1/x^3=357
is your answer
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