Example 5 - Chapter 12 Class 8 Exponents and Powers
Last updated at Dec. 19, 2018 by Teachoo
Last updated at Dec. 19, 2018 by Teachoo
Transcript
Example 5 Find m so that ใ(โ3)ใ^(๐+1) ร ใ(โ3)ใ^5 = ใ(โ3)ใ^7 ใ(โ3)ใ^(๐+1) ร ใ(โ3)ใ^5 = ใ(โ3)ใ^7 ใ(โ3)ใ^(๐ + 1 + 5) = ใ(โ3)ใ^7 ใ(โ3)ใ^(๐ + 6) = ใ(โ3)ใ^7 Comparing powers m + 6 = 7 m = 7 โ 6 m = 1 (Using ๐^๐ร๐^๐=๐^(๐ + ๐))
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