Navigation As we have seen in previous chapters, the great
Chapter 5, Problem 5.1.309(choose chapter or problem)
Navigation As we have seen in previous chapters, the great circle distance (in radians) between two points PI(LTI , LN1) and P2(LT2, LN2), whose coordinates are given as latitudes and longitudes, is calculated using the formula d COS-I (sin (LTI) sin (LT2) + cos (LT1) cos (LT2) cos (LNI - LN2 An alternate formula that can be used is ( .. LT} LT2 LN! LN2 d 1.;n-' Y,;n'( 2 ) + co, (LT,) 00' (LT,) sill' ( 2 )) Prove that by setting these two expressions equal to one another, the result is an identity.
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