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If \(Sm =1+2+3+\ldots+( m -3)\), find \(6 S _6-2 S _8\)
Classroom
Mathematics Classroom
Post Utme
Post Utme 0
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If \(Sm =1+2+3+\ldots+( m -3)\), find \(6 S _6-2 S _8\)
SchoolNGR Classroom
Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE
A
6
B
18
C
4
D
8
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Correct Answer:
Option C
Explanation:
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