Plz solve Q7 i need all the part of a and b plz i need handwritten ans with steps and explanation how you did Q7 plz i need complete ans of it with full explanation and steps plz solve all parts realted to Q7 only in a sheet of paper meritnation experts as i am a weak student and i do not understand in meritnation platform so kindly ans in a sheet of paper only that question plz understand???