Questions

If cos(A-B) - cos(A+B) = x, then the value of x is

For what is Mohs scale used?

After how much time the laws made by Parliament on the state subjects during a National Emergency become inoperative and cease to operate?

The average variable cost curve is ____ shaped.

What is the pH value of human blood?

ΔPQR is right angled at Q. If m∠R = 60o, then find the value of (secP - 1/√3) 

Where did the leader of the Individual Satyagraha movement, Acharya Vinoba Bhave started this movement?

A piece of paper is folded and cut as shown below in the question figures. From the given answer figures, indicate how it will appear when opened.