on a piece of paper, graph this system of inequalities. Then determine which region contains the solution to the system. a pictu
re with options shown. I'll award brainliest. Thank you :)
1 answer:
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Answer:
<em>A) The reference angle should be </em><u><em>,</em></u><em> and the sign of the value should be </em><u><em>negative.</em></u>
Step-by-step explanation:
cos()
Remove full rotations of 2π until the angle is between 0 and 2.
cos()
Apply the reference angle by finding the angle with equivalent trig values in the first quadrant. Make the expression negative because cosine is negative in the third quadrant.
-cos()
The exact value of cos() is
.
−
Answer:
The value of x = - 1 and 2 double root of this function
Step-by-step explanation:
we need to find the value of x which double root of
If we replace x with -2 then
If we replace x with -1 then
If we replace x with 1 then
If we replace x with 2 then
Hence, the value of x = - 1 and 2 double root of this function