11) A clock on the wall reads 10:00. The hour hand is = 5 = 7 . . .

a) . ) /t

13) Let () = (3² 2). (1) = 3?

14) Show (1 + )ⁿ = ^x > 0

15)A particle moves along a horizontal line so that its coordinate at time t is = (² + ²t²) (<---all of this is one sqrt b,c and t), 0, . a) Find the velocity and acceleration functions. b) Show that the particle always moves in the positive direction.

17) Find the differential of the function () = 1² /1+²

¹⁸⁾ One side of a right triangle is known to be 20 cm long and the opposite angle is measured as 30, 1. a) Use differentials to estimate the error in computing the length of the hypotenuse. b) What is the percentage error?

19) If (1) = 10 () 2 1 4, (4) ?

20) Show that 5 is a critical number of the function () = 2 + ( 5)³ but g does not have a local extreme value at 5.