Kseptemba Kseptemba

17-03-2015
Mathematics

Answered

How would I get the exact value of Tan157.5 using the half angle formula?

Answer :

Hippalectryon Hippalectryon

17-03-2015

[tex]\tan(157.5)=\tan(315/2)=\frac{\sin(315)}{1+\cos(315)}=\frac{-\sqrt{2}/2}{1+\sqrt{2}/2}=\frac{-1}{1+\sqrt{2}}[/tex]

Answer Link

Other Questions

The magnitude of intangible losses can sometimes be estimated by studying the average Multiple Choice annual costs borne by victims of nonviolent crimes, such a

Which of the following factors have detrimentally impacted rivers in Iraq? Select all that apply.A. Raw sewageB. Political conflictsC. Invasive algaeD. Dams in

Face value of bond: [tex] \$1,000 [/tex]Annual interest rate: [tex] 8 \frac{1}{2}\% [/tex]Annual interest: ?

Why is flexible labor important in a JIT system?

Select the best answer for the question.Complete the comparison: [tex]3+7\ \textgreater \ [/tex] ?A. [tex]9+4[/tex]B. [tex]8+2[/tex]C. [tex]7+3[/tex]D. [tex]10

how might rivalries between western European countries have give them an advantage in transoceanic exploration over larger empires such as the the ottomans ?

If the probability that an event will occur is StartFraction 10 Over 11 EndFraction , then the probability that the event will not occur is one eleventh , and

In writing goals, it is helpful to write goals as a positive action rather than as an action to eliminate a negative.a. Trueb. False

(a) If [tex]A=\left(\begin{array}{ll}3 & 2 \\ 7 & 5\end{array}\right)[/tex] and [tex]B=\left(\begin{array}{ll}-2 & 7 \\ -3 & 9\end{array}\right)

Select the correct answer.Based on the data in this two-way table, which statement is true?\begin{tabular}{|c|c|c|c|c|}\hline Type of Flower/Color & Red &am

6. What is a polyatomic ion? (You should also memorize the name, formula, and charge of the polyatomic ions listed in the lecture materials)

K^2+5k-6=0 by the quadratic formula

Diego's investment in a stock grew 28% to $448. how much did he invest?

A football team gained 9 yards on one play and then lost 22 yards on the next. Write a sum of integers to find the overall change in field position?

can anyone help me out. i dont know what 9x9 equals. what is the prouduct?

One serving of oatmeal provides 16% of the fiber you need daily. You must get the remaining 21 grams of fiber from other sources. How many grams of fiber should

What two ancient democracies helped shape the system of government we have today?

A traveler buys $1600 in traveler's checks, in $10, $20, and $50 denominations. The number of $10 checks is 5 less than twice the number of $20 checks, and the

How to round this number to the nearest thousandth 36.570438

The Speedy Fast Ski Resort has started to keep track of the number of skiers and snowboarders who bought season passes.The Ratio of the number of skiers who bou