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Show that sec'x = d/dx (sec x) = sec x tan x. First, take note that sec x = 1/cos x; d sin x = cos x dx; d cos x = -sin x dx; and d log u = du/u. From the last, we have du = u d log u. Then, letting u = sec x, we have, d sec x = sec x d log sec x; and d log sec x = d log ( 1 / cos x ) = -d log cos x = d ( -cos x ) / cos x = sin x dx / cos x = tan x dx. Thence, d sec x = sec x tan x dx, and sec' x = sec x tan x, which is what we set out to show.
First change mi/hr into ft/sec. There 1 mi = 5280 ft and 1 hour = 3600 sec. 6 mi/hr = 6 * (5280 ft / 3600 sec) = 8.8 ft / sec To figure out how fast you travel any distance you divide the distance by time it took you. distance / time = speed 205 ft / time = 8.8 ft / sec Solving for time: time = 205 ft / (8.8 ft / sec) time = 23 sec
Write sec x as a function of sines and cosines (in this case, sec x = 1 / cos x). Then use the division formula to take the first derivative. Take the derivative of the first derivative to get the second derivative. Reminder: the derivative of sin x is cos x; the derivative of cos x is - sin x.
Sir Robert Walpole, the first Prime Minister, at that time First Lord of the Treasury, of the UK.
Washington had four cabinet members: Sec. of State, Sec. of War, Sec. of Treasury and the Attorney General.
After the Sec. of State comes the Sec. of Treasury.
no, he had attorney general, sec of war, sec of state, and sec of Treasury
Find got a zero amount in my account from treasury 303?
No, he was Sec. of the Treasury.
1.Vice President and President of the Senate 2. Speaker of the house 3. President of the Senate Pro tempor 4. Sec. of State 5. Sec. of Treasury 6. Sec. of Defense 7. Attorney General 8.Sec. of Interior 9. Sec. of Agriculture 10.Sec. of Commerce
Sec. of treasury
Alexander Hamilton
Alexander Hamilton was the first Secretary of the Treasury.
sec. of state- Thomas Jefferson, sec. of treasury- Alexander Hamilton, sec. of war- Henry Knox, 1st chief justice-john jay, attorney general-Edmund Randolph
In Britain the correct title of the Prime Minister is First Lord of the Treasury.
the president is the head of the executive branch, the executive branch alos includes the vice-president and the members of the cabinet which are: the secretary of state, the secretary of treasury, secretary of defense, attorney general, secretary of the interior, secretary of agriculture, secretary of commerece, sec. of labor, sec. health and humsn services, sec. of homeland security, sec. of housing and urban development, sec. of transportation, sec. of education, sec. of energy, and sec. of veteran affairs.