For Exercises 9-14, assume that the x - and y -axes are rotated through angle θ about the origin to form the x ' - and y ' -axes . (See Example 2) Given cos θ = 5 13 and sin θ = 12 13 and P − 39 , 26 in the x y -plane, find the coordinates of P in the x ' y ' -plane .
For Exercises 9-14, assume that the x - and y -axes are rotated through angle θ about the origin to form the x ' - and y ' -axes . (See Example 2) Given cos θ = 5 13 and sin θ = 12 13 and P − 39 , 26 in the x y -plane, find the coordinates of P in the x ' y ' -plane .
Solution Summary: The author calculates the coordinates of P in the xprime
A 20 foot ladder rests on level ground; its head (top) is against a vertical wall. The bottom of the ladder begins by being 12 feet from the wall but begins moving away at the rate of 0.1 feet per second. At what rate is the top of the ladder slipping down the wall? You may use a calculator.
Explain the focus and reasons for establishment of 12.4.1(root test) and 12.4.2(ratio test)
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