sin(pi/5)
a nice trig value with a cool trick
We calculate the value of sin(pi/5) using a clever observation about triangles, the double and triple angle formulas for sin, and the quadratic formula. The result is somewhat reminiscent of the golden ratio and is a must-see for any trigonometry lovers! This is useful for instance in the following video:
Golden Integral: • a golden integral
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Watch video sin(pi/5) online without registration, duration hours minute second in high quality. This video was added by user Dr Peyam 17 October 2024, don't forget to share it with your friends and acquaintances, it has been viewed on our site 2,871 once and liked it 206 people.