Value of cos(x+π) =
Given cosine of x =
i.e., cos(x) =
Also cos() =
. So x =
.
We need to find cos(x+π) = cos().
But its value is not easy to find. So we use trigonometric formulas.
We have the trigonometric formula, cos (x+π) = - cos(x) = - =
Cos(x+π) lies in the 3rd quadrant. So there cosine has negative values. That is why, cos (x+π) = - cos(x).
Learn more about Cos(x+π) trigonometric formula at brainly.com/question/12243383
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Answer:
Blue = y+2 = 3
Red = y+2x = 3
Step-by-step explanation:
Answer:
Step-by-step explanation:
Use the Pythagorean Theorem
and
are either opposite or adjacent
is the hypotenuse.
1. Look for the right angle. (the little box). The right angle "points" to the hypotenuse. In this case, the hypotenuse is 25.
2. Because we know the hypotenuse is 25. We know that 24 is our adjacent. Meaning our missing side is the opposite.
3. Plug in the numbers.
4. Solve:
Hope this helps! Lmk if you have questions.