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Secondary 1 | Maths
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How to do Qn 3b? Pls help. Thanks
Date Posted: 3 years ago
Views: 166
1,4,7,10... every term increased by '3'..Then we use 3n +a...... To find a, take n=3, the third term is 3(3) + a = 7,,,,, so a = -2.
See 1 Answer
Answer: 3n-2
3n-2
S1:
3(1) - 2 = 1
S2:
3(2) -2 = 4
S3:
3(3) - 2 = 7
S4:
3(4) - 2 = 10
S5:
3(5) - 2 = 13
S1:
3(1) - 2 = 1
S2:
3(2) -2 = 4
S3:
3(3) - 2 = 7
S4:
3(4) - 2 = 10
S5:
3(5) - 2 = 13
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