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).
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Answer:
-29
Step-by-step explanation:
Remove the brackets: -20 - 9
= -29
The answer to this question is 3.36
Answer:
- c) Four times x over four equals four over four; Division Property of Equality
===========================
Given equation and steps to solve it:
- 4(x + 1) = 8
- 4x + 4 = 8
- 4x + 4 - 4 = 8 - 4
- 4x = 4
- 4x/4 = 4/4 <u>This is the missing step</u>
- x = 1
All steps given above including the missing one. As we can see, we divided both sides by 4, so the justification for this step is Division Property of Equality.
Hence, the correct choice is C.
Answer:
The answer to your question is: letter D
Step-by-step explanation:
Data
f(x) = x³ - 9x
g(x) = x² - 2x - 3
Process
Factor both numerator and denominator
Simplification
