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0 < 2 1. Establish the identity c o t ( 2 ) = ( c o t 2 1 ) / ( 2 c
0<21. Establish the identitycot(2)=(cot21)/(2cot)
2.Establish the identitysec2u/2=2/1+cosu
3.Solve the equations on the interval of0<2
a)2sinx+3=2 b)cos2u=1/2
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Contemporary Mathematics
Authors: OpenStax
1st Edition
1711470554, 978-1711470559
