1.

1 marks

What is full form of IOE?










2.

1 marks

What is the value of mass of electron?(in kg)










3.

2 marks

If A= [(x,y):x²+y²=25]A=[(x,y):x ² +y ² =25] and B = [(x,y):x² +9y²= 144]B=[(x,y):x ² +9y ² =144] then A∩BA∩B contains :