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trig

trigonometry review

QuestionAnswer
convert pi/4 into degrees pi/4 times 180/pi 180/4 45 degrees
find the arc length of a circle with a radius of 4cm and a central angle of 100 degrees Arc Length = 2(pi)r * (theta/360) =2(pi)(4)*(100/360) =8(pi)(5/18) =20pi/9 approx. 6.981 cm
find the period of the function: y=2sin(4x)-3 period = 2pi/b =2(pi)/4 =pi/2
Created by: jenniro50
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