15974589
Description
Note by Bethany Jarratt, updated more than 1 year ago
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Created by Bethany Jarratt
over 5 years ago
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Page 1
Index Laws 1 - Multiplying Indices am×an = am+n 24×22 = 2×2×2×2 × 2×2 = 26 or 24×22 = 24+2 = 26 EXAMPLE 23×22 = 2×2×2 × 2×2 = 25 or 23×22 = 23+2 = 25 2×a5 = a×a × a×a×a×a×a = a7 or a2×a5 = a2+5 = a7 Index Laws 2 - Dividing Indices am÷an = am−n a3÷a2 = a×a×a = a a×a or a3÷a2 = a3−2 = a EXAMPLE 23÷22 = 2×2×2 = 2 2×2 or 23÷22 = 23−2 = 2 a6÷a2 = a×a×a×a×a×a = a×a×a×a = a4 a×a or a6÷a2 = a6−2 = a4
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