Math, asked by telangnisha27, 8 months ago

The
five digit number 2a9b1 is a perfect square
Find the value of ab-1
+bn-1

Answers

Answered by hansika5040

2

Answer:

ab-1+ba-1 = 18

Step-by-step explanation:

a = 5 , B = 2

so, 5*2 - 1 + 2*5 - 1

10 - 1+ 10-1

9+9 = 18

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