Question

WILL GIVE A MEDAL AND BECOME A FAN
WILL BECOME A FAN OF EACH PERSON THAT ANSWERS A QUESTION
AND THE FIRST PERSON TO ANSWER ONE OF THE QUESTIONS GETS THE MEDAL :)
11. If y^2-2xy=21, then dy/dx at the point (2, -3) is
(A) -6/5
(B) -3/5
(C) -2/5
(D)3/8
(E) 3/5

23. If f(x)= sin^2 /1-cos x, then f'(x)=
(A) cos x
(B) sin x
(C) -sin x
(D) -cos x
(E) 2 cos x

24. If dy/dx= y cos x and y=3 when x=0, then y=
(A) e^sinx +2
(B) e^sinx +3
(C) sin x +3
(D) sin x + 3e^x
(E)3e^sinx

27. lim n->∞ sigma n, k=1 [2+(3/n)k] (3/n)=
(A) 0
(B) 1
(C) 4
(D) 39
(E) 125

Answer 1

Please show work!

Answer 2

I have 45 problems to do for a project. It's not like I am asking for help on every single problem, just the ones I don't know how to work.

Answer 3

derivative derivative...blah blahh blahhhh

Answer 4

first two is derivative...third is anti-derivative...fourth...I uhhsdfsdjhfadlfjl