500-360+350-490 answer is 490
Make them have the same denominator.
1/2 + 1/3
=3/6 + 2/6
=5/6
Answer:
A
Step-by-step explanation:
You can use the cosine rule for this - you might have to change some of the letters around for it to make sense though. Hope this helps!
To get the answer, all you have to do is plug in 1 into the equation.
So, it would be -2(1) - 2 -> -2 -2 -> -4
The answer is -4
Hope this helps!