1.

3-5 x10-x1255-7 × 6-5

Answer»

3^-5 * 10^-5 * 125/ 5^-7 * 6^-5= 3^-5 * (2*5)^-5 * (5)^3 / 5^-7 * (2*3)^-5= 3^-[5+5]* (2)^[-5+5]*(5)^[3-5 +7]= 3^0*2^0*5^5= 1*1*3125= 3125



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