2019-OL-MATHEMATICS-PART-II-SINHALA-MEDIUM-OlevelApi-PDF

OL/2019/32/s-11 3. 4. 5. (a) 5 4 @ 860 acog @ 10008 30. acog O 14000d (i) 860 x y 2BótuŒco (ii) ðO e02ñ 5x x A Obi) 600 B A S Oboðcc.3 B S õð, x — 4X — 8 = O ................
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