Question

5+root3/7-4root3=94a+3root3b

Q7, Q8, Q9 and Q12. Experts plz solve

visualise represent of 5.37 on numberline up to 5 decimal 5.37777

(x-1)dy/dx+xy=2xe''-x

if tan-1(√1+x^2 -√1-x^2)/(tan-1√1+x^2 +√1-x^2) = a. find value of x^2

Please choose which one is correct 

May I know under which head does octroi comes- Direct or Indirect expenses?

 in this question derivative of logx is written 1/y

Can you please explain

In 2+x+x² find the confident of x²

In 2+x+x² find the confident of x²