Hello here is a solution :
f'(x) =( sin11x)'cos11x +<span>sin11x(cos11x)'
(sin(ax+b))'=a cos(ax+b)
</span>(cos(ax+b))'=-a sin(ax+b)
f'(x) = 11 cos11xcos11x-11sin11xsin11x
f'(x) = 11(cos11x)²-11(sin11x)²
First, u have to know x is either equivalent, smaller or greater than any specific number.
x - 5 < 5
x < 5 + 5
x < 10
Answer:
Step-by-step explanation:
9 padlocks cost $25.20
Let the cost of a padlock be x
Then
- 9*x = 25.20
- x = 25.20/9
- x = $2.8
A padlock costs $2.8
<span>-5(x - 1) = 5 - 5x
Distribute -5 ion left side.
-5x + 5 = 5 - 5x
Subtract 5 from both sides.
-5x = -5x
Add 5x to both sides.
0 = 0
The equation 0 = 0 is true, so this equation has infinitely many solutions.
</span>
The exact form is 40/9
The mixed form is 4 4/9
