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Solve the following equations if 0<x<2pie (those are 'less than or equal to') answer to 2 decimal places.

a) square root of 2 cos(x = pie/2) + 1 = 0

b) sin(1/2)(x-2pie/9) = 0.6

a) sqrt 2cos(x-PI/2)=1 square both sides, then solve.
b) sin(x/2-PI/9)=.6
x/2= arc sin .6 + PI/9

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