For you math wizards.
Why is it when using the inverse of sine,cosine,and tangent to find angles of a right triangle you come up with different numbers. Ex. a triangle with a hypot. of 2.05″ and sides of 1.4″ and 1.5″.
For angle “a” I get 43.07 sin -1, 43.03 tan -1, and 42.97 cos -1.
For angle “b” I get 47.03 sin-1, 46.97 tan -1, and 46.93 cos -1.
It's a rounding error. Use more decimal places for your hypotenuse (for example: 2.051828).
Yup, after adding more decimal places it worked right out.Thanks
You, sir , are a smart cookie! The ancient Egyptians used a square to build that looks suspiciously like our speed-squares. They had a short string in the center of the trianglur metal, with a pointed weight on it, almost like a really short plumb bob in the middle of the square that the used to find level. We may have cooler tools, but we do things that man has done for thousands of years.
Hello Arcflash. I was reading a book just the other day that had a picture in it of what you just described."but we do things that man has done for thousands of years."Yup, the bible makes it clear, "there is no new thing under the sun".Ecclesiastes 1:9 (King James Version)
The thing that hath been, it is that which shall be; and that which is done is that which shall be done: and there is no new thing under the sun.
I'm convinced that the ancient Egyptinas were more advanced than the Egyptians of today!
Hands down, so were the Aztec,Mayans, Incas and Hebrews. There is a stone that was cut and moved into place at the bottom of the Temple Mount in Jerusalem that weighs 400+ tons. The great pyramids near Mexico City were built before Europe was even in the dark ages.Just take a look at the craftsman ship of this wall built by the Incas.
http://en.wikipedia.org/wiki/Image:Inca_Wall.jpgAh, to have known what the ancients did.
Don't forget it took a lot of slavesmanship to cut and set those stones too!
Where there's a whip there's a way.
I was born and raised laying stone, but by golly
if your life doesnt depend on it your not gonna build a
Economics- The evil step-sister of creation.
Yup, i'm sure it did.