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I am confused about how to open it. Please give me suggestion

I am confused about how to open it.        Please give me suggestion

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Grade:11

1 Answers

Arun
25750 Points
6 years ago
Dear Kamal
 
Use basic appraoch that
 
Put evry distance formula = a
And then find a relation.
 
Now expand the determinants.
 
You will surely get that answer.

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