You use it everyday but let it rest at night. It has an identical twin beside it all the time. For some reason you always cover it up. It is not alive but it has have a soul. What is it?
A thing which is Live ,as we use it Everyday for watching this Beautiful Nature,and has high auto-focusing strength!!! so what is it??
What is closed during the day, and open at night. But you can always use it.
Some dude wants two rectangular enclosures against his house for some reason. He has 300 ft of fencing. Find the following:
a) Area in terms of x b) Maximum area c) Dimensions for maximum area. Include units in your answer.
Let ABC be an equilateral triangle. Let P be any point on its incircle. Prove that:
AP2 + BP2 + CP2 = k for some constant k
