please solve this Question
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a=1,a r sqare+ar to the power 4=90
a r sqare(1+r sqare)=90
(1)(3×3)(1+3×3)=90,
so ,r=3
a r sqare(1+r sqare)=90
(1)(3×3)(1+3×3)=90,
so ,r=3
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