Question

Find the slope of the tangent to the curve y=7 cos x at x=pi/4

Answer 1

Answer:

y=7 cos x at x=pi/4 = z= pu/11

Step-by-step explanation:

y=7

x=4

        7

      +4

        11

y+x=z

Answer 2

Answer:

7x =pi/4 =7× 4=28 so correct answer is 28