Question 1170609: Let be an angle measure and let the real numbers a, b, c, cosx be such that they make the following equation true: acos^2x+bcosx+c Write the equivalent quadratic equation for a, b, c, cosx Compare the given and the obtained equality for a=4,b=2,c=-1
Answer by ikleyn(52781) (Show Source):
You can put this solution on YOUR website! .
Attentively read your post.
Find all errors you made in it, and fix them.
Then re-post to the forum.
Please do not post it to me personally.
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