Find a cosine ratio of angle o.
1 answer:
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Answer:
Option (D)
Step-by-step explanation:
In the picture attached,
An obtuse angle triangle ABC has been given.
By applying Sine rule in the triangle,
Since, m∠A + m∠B + m∠C = 180°
45° + 110° + m∠C = 180°
m∠C = 180°- 155° = 25°
b =
b = 15.56
b ≈ 15.56
a =
a = 11.712
a = 11.71
Therefore, Option (D) will be the answer.
Interval simply represent the set of numbers containing all numbers between any two numbers.
The representations of are
and
From the question, we have:
The above representation is in interval notation.
The interpretation is that;
The highest number in the interval is -6
The equivalent using set notation is:
The equivalent using inequalities is:
Read more about intervals at:
Answer:
Step-by-step explanation:
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