Your answer for this one is A....use the distributive property
The given polynomial is
As this is a fourth degree polynomial, we can not directly use any formula, So here we will use hit and trial method
check whether x=-1 is a zero of the polynomial or not
Hence x=-1 is not a zero.
Now check whether x=-2 is a zero of the polynomial or not
Hence x=-2 is a zero of the polynomial.
Hence we can re-write the polynomial as
Hence the required binomial is (x+2)
Multiply 2x30 = 60 and 2x5= 10 that make 60+10 which is 70
<h3>
Answer: (sqrt(2)/2, -sqrt(2)/2)</h3>
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Explanation:
The angle 315 degrees is in the interval 270 < theta < 360. This places the angle in quadrant 4.
To get the reference angle, we subtract from 360
360-315 = 45
So the reference angle is 45 degrees. Because we're in quadrant 4, we'll need to remember the following
cosine is positive in quadrant 4
sine is negative in quadrant 4
Since sin(45) = cos(45) = sqrt(2)/2 after using the unit circle, this means
cos(315) = sqrt(2)/2 and sin(315) = -sqrt(2)/2
The terminal point is located at (sqrt(2)/2, -sqrt(2)/2)
The cosine of the angle theta handles the x coordinate, while the y coordinate is handled by sine.
