4. f(t)=e¹+7. 5. f(t)= test. 6. f(t) = tcost. 7. f(t) = t sint. 8. f(t) = et sint.

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A: Answer :- We know from the Euler formula that  v+f =e+2

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A: please find the attached answer

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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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