Question

30 cos(30x) + 14 = -16

Answer 1

Answer:

x = 30/π, in general case x=30/π +2πn

Step-by-step explanation:

30 cos(30x) + 14 = -16

30 cos(30x)  = -16 - 14

30 cos(30x)  = -30

cos(30x)= - 1

30x = π

x = 30/π, in general case x=30/π +2πn