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Let x= 4 80^ 65^ 55^ 20^ + 50^ + 70^ , then x is:

Correct answer

1

Step-by-step solution

aligned & Denominator = 20^ +2 60^ 10^ = 20^ + 3 10^ & and Numerator =2 80^ ( 120^ + 10^ ) & =2 80^ 3 2 + 70^ - 90^ = 3 10^ + 20^ & x=1 & aligned

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