Homework Set # 1 - Due September 4
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1)
a) Prove that A=(Ax2+Ay2+Az2)1/2.
Use Pythagoras theorem.
b) Using a) prove that
cos2alpha+cos2beta+cos2gamma=1.
2) 1.3.3
3) 1.3.6
4) 1.4.6
5) 1.4.9
6) 1.5.5
7) 1.5.8