Someone please answer this for me.
1 answer:
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The factors of the equation will be
When we split the equation into two groups we will get
Now taking (x-1) common
Thus the factors of the equation will be
To know more about the factors of quadratic equation follow
Answer:
Step-by-step explanation:
we know that
The formula of law of cosines is equal to
where
a, b and c are sides. C is the angle opposite side c
In this problem we have
substitute the given values