https://byjus.com/rd-sharma-solutions/class-11-maths-chapter-8-transformation-formulae-exercise-8-2/ دیدگاه خود را بنویسید / فرمول / از Christopher J. Ziegler https://byjus.com/rd-sharma-solutions/class-11-maths-chapter-8-transformation-formulae-exercise-8-2/