Trig limit using double angle identity
10:31
Khan Academy
Trig limit using double angle identity
In this video, we dive into finding the limit at θ=-π/4 of (1+√2sinθ)/(cos2θ) by employing trigonometric identities. We use the cosine double angle identity to rewrite the expression, allowing us to simplify and cancel terms. This approach helps us overcome the indeterminate form and find the limit, showcasing the power of trig identities ...
Aug 14, 2016
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