paper:Mth631 Date:30-july-2026 Objective almost 90% skill for study se aya tha ... Subjective me 1 question find and analyze critical points , second question reiman sum Wala tha , third b reiman Wala tha us me second differential type find krni thi , forth region wala tha , fifth definition thi differential in one variable or continuously differential function or last question chain rule Wala tha jis me cos sin tha ..