Discover Questions

Is it worth still spending money to observe the moon? And what can we learn? How many hours between 5 am to 1:30 pm? Differentiate: i) sqrt (sinx)/ sin sqrt(x) ii) sin^3 x iii) tan (sinx) iv) arctan (x sin α) / (1 +xcos α)? How many feet are in a square foot? If the difference between two numbers is 66 and the lcm is 360, what are the numbers.?