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secondary 4 | E Maths
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for part 2a:
i don’t understand why is it +1 and -1
pls explain the working to me
Date Posted: 5 years ago
Views: 238
difference betw any two consecutive odd numbers is always 2.
for e.g.: 3, 5, 7
difference of 3 & 5 is 5-3 = 2
difference of 5 & 7 is 7-5 = 2
hence, if one odd number is
2n - 1
the next consecutive odd number is
2n - 1 + 2 = 2n + 1
AND the next consecutive odd number AFTER 2n + 1 is
2n + 1 + 2 = 2n + 3
thats all!
for e.g.: 3, 5, 7
difference of 3 & 5 is 5-3 = 2
difference of 5 & 7 is 7-5 = 2
hence, if one odd number is
2n - 1
the next consecutive odd number is
2n - 1 + 2 = 2n + 1
AND the next consecutive odd number AFTER 2n + 1 is
2n + 1 + 2 = 2n + 3
thats all!
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