Question

please answer this question briefly​

Answer 1

ur ans are :. 20) 0.654

21) 88

23) 14

24) a= 2 & b = -1

25) (25-5√3)/22

ur ans are in the above attachments

but l don't know the ans of 19 n 22 ques so those two are not mentioned here

Hope these ans would help you

Thank u ☺️☺️