Given Function: We are given the function t=2s(1−4s)2. To find the second derivative of t with respect to s, we first need to find the first derivative dsdt.
Find First Derivative: Using the product rule for differentiation, which states that (uv)′=u′v+uv′, where u=2s and v=(1−4s)2, we differentiate t with respect to s. First, we differentiate u with respect to s: dsdu=2. Then, we differentiate v with respect to s: u=2s0. Now we apply the product rule: u=2s1.
Simplify First Derivative: We simplify the expression for the first derivative dsdt: dsdt=2(1−8s+16s2)−16s(1−4s)=2−16s+32s2−16s+64s2.
Find Second Derivative: Combine like terms in the expression for dsdt: dsdt=2+32s2+64s2−32s=2+96s2−32s.
Differentiate Second Derivative: Now we need to find the second derivative ds2d2t by differentiating dsdt with respect to s. ds2d2t=dsd(2+96s2−32s)=dsd(2)+dsd(96s2)−dsd(32s).
Differentiate Second Derivative: Now we need to find the second derivative ds2d2t by differentiating dsdt with respect to s. ds2d2t=dsd(2+96s2−32s)=dsd(2)+dsd(96s2)−dsd(32s).Differentiate each term: dsd(2)=0, dsd(96s2)=192s, and dsd(32s)=32. So, ds2d2t=0+192s−32.
Differentiate Second Derivative: Now we need to find the second derivative ds2d2t by differentiating dsdt with respect to s. ds2d2t=dsd(2+96s2−32s)=dsd(2)+dsd(96s2)−dsd(32s). Differentiate each term: dsd(2)=0, dsd(96s2)=192s, and dsd(32s)=32. So, ds2d2t=0+192s−32. Simplify the expression for the second derivative: ds2d2t=192s−32.
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