Question

tan inverse (x-1/x+1)+tan inverse(x+1/x+2)=pi/4 solve for x

I want to learn maths 

Thank you!

I want to learn maths 

Thank you!

Class 11 limits ex 13.2 5th questions 

• How it will  (2 x square - x square)
  

If a,b and c are three vectors such that each one is perpendicular to the vector obtained by sum of the other two and |a|=3, |b|=4 and |c|=5, then prove that |a+b+c|=5

A speak truth in 75% of the cases, while B in 90% of the cases. in what percent of cases are they likely to contradict each other in starting the same fact

what is 3+x=5-2

find x value