计算:0.08^1340*[(-5)^2009]^2

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计算:0.08^1340*[(-5)^2009]^2

(0.08^1340)×[(-5)^2009]^2
=[(2/25)^1340]×(5^4018)
=[(2^1340)/(25^1340)]×(5^4018)
={(2^1340)/[(5^2)^1340)]}×(5^4018)
=[(2^1340)/(5^2680)]×(5^4018)
=(2^1340)×[5^(-2680)]×(5^4018)
=[(2^1340)/(5^2680)]×(5^4018)
=(2^1340)×[5^(4018-2680)]
=(2^1340)×(5^1338)
=(2^1338)×(2^2)×(5^1338)
=[(2×5)^1338]×4
=4×10^1338

计算:0.08^1340*[(-5)^2009]^2 0.08^1340*[(-5)^2009]^2=(2/25)^1340*(-5)^2009*2=(2^1340/25^1340)*(-5)^2*2009=[2^1340/25^1340]*25^2009=25^2009*2^1340/25^1340=25^669*2^1340=(5^2)^669*2^1340=5^1338*2^1338*2^2=10^1338*4=4*10^1338=400000000.......0(1338个0)