Cb Z Uk A Odbiór W Polsce Caculus Derivatives?

Caculus derivatives? - cb z uk a odbiór w polsce

Hello hmm kinda stuck on these problems in

1. From the hypotenuse AB of triangle ABC 5 feet and legs AC decreases with a speed of 2 meters per second. The sentence in square meters per second, when the area will change when AC = 3?

assingning good side with constant x, y, z
x CA
and CB
z aka hypotenuse AB.

I asked. x = 3 y = 4 z = 5
and the problem x '=- 2

I like and that the equation ([2 x'y + xy ')] / 4 ... I could not answer .. My solution?

2. For what values of x in the interval [0,2] is the tangent to the curve through (y = x ^ 2 - cos Y) given in parallel to the axis ..


THX /