Please answer my question I will mark you as brainleist answer
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=(5)n×5²-6×(5)n×5¹/13×(5)n-{(5)n/5¹}
=(5)n (5²-6×5¹)/(5)n {13-(1/5) } [by taking common (5)n &cutting it ]
= 25-30/(65-2/5)
=-5×5/64= -25/63
Hope it helps u..
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