Can we find x so that we have sin(x), sin(2x), and sin(3x) on a right triangle? Yes! I actually have done the log triangle, exp triangle, so today this is the sine triangle for you! This is a perfect problem to challenge any precalculus or even calculus student!

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Check out the related videos:
log triangle problem:    • solution to the logarithmic triangle  
exp triangle problem:    • solving an exponential triangle problem  
triple angle identity for sine:    • sin(3x) in terms of sin(x)  

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