Using the expansion of find the value of such that
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Originally Posted by nerdzor Using the expansion of find the value of such that Let and let and let [tex].
Now substitute the expressions for and into the expansion of and solve for .
We can do this head-on ... if you dare.
We need: . Using the expansion of , find the value of
such that: .
Take the tangent of both sides: . . . . . . . . . .
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