ok guys now for this post i really need all of u .
everybody thier should contribute.
just post any shortcut u knw for solving physics problem or mathematical problem or any application of derivative or integration or any other technique in physics problem for solving in competitive exams.
i knw everyone is knwing atleast one shortcut so please post it here bcoz it will help everyone.
in competitive exams d time is limited to solve d problem some dont knw d shorkut whick kill thier lot of time and those exams r turning point for tht person so atleast for someones future please give ur five minute
please post karo yaar zindagi ka sawaal hai.
specially i wnt replies frm
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