# How do you evaluate 10 ^ (log3 + log4)?

$12$
${a}^{{\log}_{a} b} = b$ then
${10}^{{\log}_{10} 3 + {\log}_{10} 4} = {10}^{{\log}_{10} \left(3 \times 4\right)} = 3 \times 4 = 12$