Math Trigonometry sin cos Trigonometric Hand Trick This is an easy way to remember the values of common values of trigonometric functions in the first quadrant.

Crepe paper flowers look like natural flowers but last longer and wonâ€™t wilt or droop. Thatâ€™s why they are very popular for party decoration. You can also make different kinds of crepe paper flowers to match the occasions at any seasons. I came across this nice DIY tutorial on how â€¦