If 4sin −1 x + cos −1 x = 𝜋 then find the value of x.
This is a question of CBSE Sample Paper - Class 12 - 2017/18.
You can download the question paper here https://www.teachoo.com/cbse/sample-papers/

Learn in your speed, with individual attention - Teachoo Maths 1-on-1 Class