Posted by Anita on Thursday, January 19, 2012 at 9:08pm.
What value for function y=3cos(tpi) + 2 gives an instantaneous rate of change of 0?
a) 0
b) pi/2
c) pi/3
d) pi/4

Math  wow, Thursday, January 19, 2012 at 9:14pm
pi/3

Math  Reiny, Thursday, January 19, 2012 at 11:17pm
dy/dx = 3 sin(tπ)
=0
sin(tπ) = 0
tπ = 0 , or tπ = π or tπ = 2π
t = ... 3π, 2π, π , 0 , π, 2π , 3π . .

Math  Anita, Thursday, January 19, 2012 at 11:33pm
Answer is 0, right?
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