1.6 Trig Limits [03] Proof of sinx/x
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4:14
1.9 Geometric Interpretation of sec(x) and tan(x)
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12:08
The Limit (do not use L'Hospital rule)
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17:08
Proofs: Lim sinx/x =1 and lim [cosx -1] /x =0 as x goes to zero from geometry
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4:15
Trig Visualized: One Diagram to Rule them All (six trig functions in one diagram)
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1:33:17
Limits Full Coverage - Basics, Surds, infinity, Zero, Exponentials, Trig Limits, Continuity etc
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5:27
Limit of sin(x)/x: Detailed Explanation and Proof
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18:05
Proof: lim (sin x)/x | Limits | Differential Calculus | Khan Academy
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30:30