Which of the following expressions are equivalent to -4+ (4+5)?
2 answers:
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Answer:
Step-by-step explanation:
For this triangle we have to
We want to find the length of b
We know that the sum of the internal angles of a triangle is 180 °
So
Now we use the sine theorem to find the length of b:
Then:
Sorry that's all i know
<h3>that is in my answer</h3><h2>#carryonlearning:-D</h2>