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Find domain of the function `10^x+10^y=10` |
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Answer» `10^y=10-10^x` `10^y=10(1-10^(x-1))` `log_10 10^y=log10(1-10^(x-1))` `y=log_10 10+log_10(1-10^(x-1))` `y=1+log_10(1-10^(x-1))` `log_10(1-10^(n-1))` `1-10^(x-1)>0` `1>10^(x-1)` `10>10x` `10^x<10^1` `x<1` Domain=`(-oo,1)`. |
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