web2.0calc
 
+0  
 

This Should Be Easy But It Isn't

0
1038
1
avatar
Round the following to the nearest integer: 10 times the product of answers 3 and 4, all raised to the power of the product of answers 1 and 2.

1. If cos A= 3/5, find tan A (as a fraction)
2. If sec A= 25/7, find sin A (as a fraction)
3. Change 7pi/4
4. Find sin pi/2

If my math is correct these are the answers. (I'm not sure on the answers)
The answer to # 1 is 4/3
The answer to #2 is 24/25
The answer to #3 is 315
The answer to #.027
 Jun 20, 2012

1+0 Answers

 #1
avatar+3146 
0
Kitsune123:

If cosA= 3/5, find tanA (as a fraction)


[input]tan(acos(3/5))[/input]
------------------------------------
Kitsune123:

If secA= 25/7, find sinA (as a fraction)


sec(A)=1/cos(A)
1/cos(A)=25/7
1=25/7*cos(A)
1/(25/7)=cos(A)
7/25=cos(A)
A=acos(7/25)

[input]sin( acos(7/25) )[/input]
------------------------------------
Kitsune123:

Change 7pi/4


[input]7pi/4 * 180/pi[/input]

------------------------------------
Kitsune123:

Find sin pi/2


in rad:
[inputrad]sin( pi/2 )[/inputrad]
in deg:
[input]sin( pi/2 )[/input]
 Jun 22, 2012

2 Online Users

Top Users

avatar+130071 CPhill moderator
avatar+37157 ElectricPavlov
avatar+15001 asinus moderator
avatar+3146 admin administrator
avatar+2669 LiIIiam0216
avatar+2539 GingerAle
avatar+2499 Solveit
avatar+1944 NotThatSmart
avatar+1927 tomtom
avatar+1770 bader
avatar+1577 parmen

Sticky Topics