Question

how to prepare for 12th board exam within 1 month

Answer 1

I am study in 11th class
but I am learning in syllabus with in buyjus app

so you used "buyjus app"

Answer 2

mmm I'm also ur class make important notes about the subject u want to study.by taking important things as hints and make thorough the formulaes first and foremost then concentrate into the things which want u study don't cover fully but partially making the important and the lessons u already studied.