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S3 Additional Mathematics

Question post on Thu, 27/05/2021 1:26am

Evaluate (5^{lg 2})(2^{lg 3})(5^{lg 9})(2^{lg 6}) without the use of calculators.

hwachie · Answer 1 · Post on Thu, 27/05/2021 1:39am

hwachie Post on Thu, 27/05/2021 1:39am

(5^{lg 2})(2^{lg 3})(5^{lg 9})(2^{lg 6}) = (5^{lg 2 + lg 9})(2^{lg 3 + lg 6})

=(5^{lg 18})(2^{lg 18})

=10^{lg 18}

=18//