The trigonometric formula (or identity) should you use to help simplify and solve the equation is
<h2>Trigonometry identity</h2>
Given the trigonometry identity
According to trigonometry identity
Also since , the expression becomes;
To simplify the function given, you will substitute into the original equation to have:
Hence the trigonometric formula (or identity) should you use to help simplify and solve the equation is
Learn more on trig identity here: brainly.com/question/24496175
I think this is the way that the problem was given
Solve x−(−8)=2, for x=6
If so then plug (x=6)==> -6 -(-8)=2==> - 6 +8 =2, hence 2=2
Answer:
141
Step-by-step explanation:
The interior angles of a polygon with <em>n</em> sides is 180(<em>n</em> - 2) and the polygon has 7 sides, so the sum of its interior angles is 180(7 - 2) = 180(5) = 900.
125 + (x + 7) + 107 + (x - 15) + x + 131 + 122 = 900
Combining like terms,
3x + 477 = 900
3x = 423
x = 141
I think answer should be what the other person said okay thanks have a great day
Answer:
The answer to your question is: n = 95°
Step-by-step explanation:
The sum of the suplementary angles equals 180°
Then
121 + x = 180
x = 180 - 121
x = 59°
144 + y = 180
y = 180 - 144
y = 36°
The sum of the internal angles in a triangle equals 180°
x + y + z = 180
59 + 36 + z = 180
z = 180 - 59 - 36
z = 85
Finally
n + 85 = 180
n = 180 - 85
n = 95°