8. Find the unit tangent vector Î at the point with the given value of t. a) f(t) = (cos(t), t, sin(t)), t = 7/4. b) f(t)= (1+t³, te-, sin(2t)), t = 0.

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A: First we calculate 2^5.2^5= 2x2x2x2x2=32

A: Min  = 15Q1 = 30Median = 45Q2 = 55Max = 100

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A: I have to answer for part-d and part-e, so i use the previous result .

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A: (a) Given that the percentage of stadiums have just built in the past 20 years is, P=15%=15/100=0.15…

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A: Given: y=ex-12 we know that am-n=aman

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A: Find 66 to the nearest 100

A: Given revenue function: R(x)=-x2+8x

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A: