-4 (2x - 3) > -28
Divide by -4 on both sides. Since we're dividing by a negative, we need to switch the sign.
2x - 3 < 7
Add 3 to both sides
2x < 10
Divide by 2 on both sides
x < 5
Answer:
and
Step-by-step explanation:
Recall that is a value of the function cosine for the special angles: and , then:
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