Math, asked by sreeya1126, 10 months ago

Factorise :- i] a2+1/a2-14 ii] 9a2+1/9a2-18

Answers

Answered by princegupta99270

1

Step-by-step explanation:

A^2 + 1/a^2 = 18

Add -2(a × 1/a) on both sides,

a^2 + 1/a^2 - 2(a × 1/a) = 18 - 2(a × 1/a)

(a - 1/a)^2 = 18 - 2

(a - 1/a)^2 = 16

a - 1/a = 4

i hope this will help you

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