Answer:
Exact value of Cos(45° - 60°) is 0.96 using difference of two angles.
Step-by-step explanation:
Given:
Cos(45° - 60°)
We have to apply the formula of cosine for difference of the two angles.
Formula:
Plugging the values.
⇒ 
We know that the values :
and 
So,
⇒ 
⇒ 
⇒ 
⇒ 
...<em>rationalizing </em>
⇒ 
⇒ 
...<em>taking 2 as a common factor</em>
<em>⇒ </em>
To find the exact values we have to put the values of sq-rt .
As<em>, </em>
and 
Then
<em>⇒ </em>
<em />
<em>⇒ </em>
<em />
⇒ 
So the exact value of Cos(45° - 60°) is 0.96 using difference of two angles.
I'm writing this because I need to type extra characters, but the answer is (0,7) because x=0, because there are 0 X's in the equation, and y=7. The equation that comes from is y=Mx+b, where 'b' is the y-intercept, the equation, when not simplified looks like this, Y=0x+7
Answer:
son of the priest
Step-by-step explanation:
I guess
Answer:
Step-by-step explanation:
Given a quadratic equation
ax^2+bx+c=0
you can find its solutions with the following formula:
x_{1,2} = \dfrac{-b\pm\sqrt{b^2-4ac}}{2a}
You equation is identified by the coefficients
x^2 - 3x + 5 \iff a = 1,\ b = -3,\ c = 5
Which means the solutions are
\dfrac{3 \pm \sqrt{9-4\cdot 5}}{2} = \dfrac{3 \pm \sqrt{-11}}{2}
Answer:
Range = {0,2/3,1 1/3, 2, ...}
Step-by-step explanation:
The range is the output so the y values, when x = 3 then
y = 
(3) - 2 so y = 0
y = (4) - 2 so 8/3 - 6/3 is 2/3 so y = 2/3
y = (5) - 2 so 10/3 - 6/3 is 4/3 so y = 4/3 or 1 1/3
y = (6) - 2 so 12/3 - 6/3 is 6/3 so y = 2 and so on....
Now you try the rest
