Question: (a) From the definition (Equation 4.46), construct n 1 (x) and n 2 (x) . (b) Expand the sines and cosines to obtain approximate formulas

(a) From the definition (Equation 4.46), construct n1(x) and n2(x) .
(b) Expand the sines and cosines to obtain approximate formulas for n1(x) and n2(x), valid when x

Equation 4.46

d sin.x je(x) = (-x)' (1-4) x dx X d ne(x) =

d sin.x je(x) = (-x)' (1-4) x dx X d ne(x) = -(-x) (14) x dx COS X X (4.46)

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