Write cos 53 degrees in terms of sine.
1 answer:
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9514 1404 393
Answer:
58. 2 real roots; see attached for a graph
59. -6, 3
Step-by-step explanation:
58. A graphing calculator graphs this easily. The graph is shown in the attachment. There are 2 x-intercepts, hence 2 real roots.
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59. The x-intercepts are (-6, 0) and (3, 0), so the x-values x=-6 and x=3 satisfy the equation y = 0.
I'm going to rewrite f(t) to make it a little easier to use the power rule:
Now just take the derivative using the power rule:
Since they ask for f'(a), we need to replace the t's with a's:
Now just take the derivative using the power rule:
Since they ask for f'(a), we need to replace the t's with a's: