• anonymous
Velocity/tangent vector example #2 (see link below): how do we know what trigonometric identities to apply? The example seemingly arbitrarily chooses to re-express everything in terms of the half-angle. On a normal problem, is there any indication as to what identities should be used? Or alternatively, is there a solution with only simple identities (I tried but couldn't simplify it enough)? http://ocw.mit.edu/courses/mathematics/18-02sc-multivariable-calculus-fall-2010/1.-vectors-and-matrices/part-c-parametric-equations-for-curves/session-20-velocity-and-arc-length/MIT18_02SC_we_11_comb.pdf
OCW Scholar - Multivariable Calculus
• Stacey Warren - Expert brainly.com
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SOLVED
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