Book Maths Puzzle

what will be the reminder on dividing 37^52 by 17

Read Solution (Total 2)

Book Other Question

This one is a little more difficult because you are not told if the object is heavier or lighter.

You have 9 gold coins. All 9 coins look exactly the same but one coin is a fake and is either lighter or heavier than the other 8 coins. You have a scale - balance type with 2 trays - but can only load it twice. How do you find the fake gold coin?
if x + y = 1/x^2 + 1/x^3
then y(1/2) - y(1) will be
here y(n) is the value of y at x = n