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Topic review (newest first)
In a non-right angled triangle, with internal angles a, b, c, tan a + tan b + tan c = tan a * tan b * tan c.
sin (x/2) = ± sqrt[ (1 - cos x) / 2 ]
Not sure if this is what you wanted but...
pople please help
i knew that one.
When do you learn this?
Hey, mathsyperson, please register and swing by every so often, you could help solve some of the visitor's problems with that knowledge.
cos = adjacent divided by hypotenuse
Sin= opposite divided by hypotenuse!
Yes, I did think. But, it's not a thought allowable for this forum.
Ooh, ooh, I know one!
ha ha ha ha! u thought!!