help select the correct multiple choice

Find the value of the second derivative of y at the point x=2 y= 1 given the equation x2 +y2 -5=0 Q y"=24 O y"=-2/9 Q y"= 4 Q y"=5 O None of these is correct Find the derivative of the function y = xtan 2x ONone of these Ox2 tan x-1 sec2 2x O plan 2x tan 2x (2 sec2 2x) (Inx) + Ortan 2x (sec- 2x) (In x) plan 2x sec2 2xV9x4 + 2 sin x Evaluate lim x-+ +0o 3x2 - 5 ONone of these or the limit does not exist 03 O1 3 O1Compute lim 1 - cos(ts) t-0 14 None of these OO 02 01(2x2 + 1) Inx Given that L = lim (x + 2)(x + 3) In(x3) Find L2 . OL = 1 None of these OL = 4/9 OL = 0 OL = 2/3