AT x C Asu My ASU WeBWorK Eng d M Chegg C https://webwork.asu.edu MAT 267 Spring

Question

AT x C Asu My ASU WeBWorK Eng d M Chegg C https://webwork.asu.edu MAT 267 Spring 2015 Section 10.7/1/ /webwork2/England Problem 1 Section 10.7: Problem 1 Up Ned Grades Answer Preview Entered Problems (0,17) Problem 2 8, infinity Problem 3 Problem 4 (-4,01 U 0,4 U (4, oo) Problem 5 Problem 6 Problem 7 At least one of the answers above is NOT correct. Problem 8 Problem 9 Find the domain of the vector functions, r(t), listed below. Problem 10 You may use "-NF for 00 and use "INF for oo as necessary, and use "U" for a union symbol if union of intervals is needed. Problem 12 Problem 13 Problem 14 Vt 8, sin(4t Problem 15 Problem 16 Problem 17 Problem 18 Problem 19 Problem 20 Note: You can eam partial credit on this problem. Display options View equations as: Preview Answers Submit Answers Math Jax Your score was recorded. You have attempted this problem 11 times. Show saved answers? You received a score of 67% for this attempt. Yes Your overall recorded score is 67%. You have unlimited attempts remaining. Use Equation Editor? Yes Result comect comect 8:42 AM 2/7/2015

Explanation / Answer

C)

for e-8t Domain will be all real numbers excluding -INF
for t/root(t2-16) :
            t/root(t2-16) will become infinity when t2-16 becoms 0 so +/-4 should not be in the domain
             root(t2-16) will become imaginary when -4<t<4
so domain of t/root(t2-16) will be (-INF,-4)U(4,INF)

for t1/3 domain will be all reals numbers excluding INF and -INF
so domain for r(t) = (-INF,-4)U(4,INF)

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