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Reference for Jan please :-)

  Hello students, I would be grateful if anyone would offer me a reference for my tutoring, it is for the UNSW tutor site, link below. Thank...

Wednesday, June 7, 2023

Ex5-2B Q15 Arithmetic series


Method 2.  To solve equation (1) and (2), just subtract them, and this will eliminate the term 2na!! so now you can find n from that.

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