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CLASS 9TH MATHS NEW BOOK 2025 EXERCISE 6.3 COMPLETE ENGLISH AND URDU MEDIUM ||PCTB SYLLABUS #pctbsyllabus #class9maths #mathsnewcurriclum #punjabboardmaths #nationalcurriculum #9maths #waqasnasir #mushahidalizafar #pctb #maths ‪@SirSair‬ ‪@MushahidAliZafar‬ ‪@Mhm-mz‬