Expanded:
y = sin(4x)*sin(4x)*cos(3x)
need to use the product rule and chain rule
look at individual derivatives, use chain rule
d/dx sin(4x) = 4cos(4x)
d/dx cos(3x) = -3sin(3x)
put it together using product rule
dy/dx = 4cos(4x)*sin(4x)*cos(3x) + 4cos(4x)*sin(4x)*cos(3x) - 3sin(3x)*sin(4x)*sin(4x)
simplify
dy/dx = 8cos(4x)*sin(4x)*cos(3x) - 3sin(3x)*sin2(4x)
answer is A.
Answer:
adding both equations
4x+9y=5
-4x+7y=11
+ + =+
________
0 +16y=16
y=1
putting the value of y in first eqn
4x+9×1=5
4x=5-9
4x=-4
x=-1
so the x is -1 and y is 1
Answer:
x > 5 or x < -9
Pls mark brainliest. Thanks!
Step-by-step explanation:
(-1)^2 (-4+(-4))-(-4)
1(-8)+4
-8+4
-4
Answer:
There are 15 calories in one serving.
Step-by-step explanation:
To find out how many calories are in one serving, you simply have to divide the number of calories by the number of servings.
75 / 5 = 15