Answer: option D
Step-by-step explanation:
Remember the cosine identity:
Given the right triangle DFE shown in the image, you can identify that the adjacent side and the hypotenuse for the angle F of this triangle are:
Now you can substitute values into and then reduce the fraction.
THerefore you get:
Answer:
3x +3
Step-by-step explanation:
5 + 3x - 2
Combine like terms
3x +5-2
3x +3
Answer:
I’m sorry but I don’t understand the question
Step-by-step explanation: