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Searching for trigonometry
28:05
Problems Plus 8: Trigonometric Formula and Sum of Series Involving Inverse Cotangent
1
01:01:54
Problems Plus 7: Calculating π Using Inverse Tangent Maclaurin Series
26:17
Problems Plus 4: Limit of the Angle of a Spiraling Triangle Sequence
3
29:53
Problems Plus 3: Trigonometric Identity and Sum of Infinite Series
1
06:58
Problems Plus 1: 15th Derivative of sin(x^3) at x = 0
2
14:40
Trig Tricks: How to get cos(π/3, π/4, π/6) and sin(π/3, π/4, π/6) without a calculator
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