If cos(x)=3/5 and "x" is located in the fourth quadrant, then sin2(x)=___.
-24/25
100
Square root 1-cos(45)/2
Sin22.5
100
Tan45-10cos60
-4.0
200
Convert 30,10',15" to the decimal degree form. Round to the nearest thousandth of the degree.
30.171
200
True or False: tan(x)-sec(x)=sin(x)-1/cos(x)
True.
200
Sin2(x)/Sin(x)+1+Cos2(x)/cos(x)
4cos(x)
200
Cos1/2B
2 square root 5/5
200
Cos(870)-sin(780)
-square root 3
300
The top of an antenna is 125 feet above ground level. The tower is to be anchored by a guy wire 20 feet below its top to a point on the ground 80 feet from the base of the tower. What is the length of the guy wire? Round to nearest hole number.
132ft
300
1-cos^2(x)/1+sin(x)=___
Sin(x)
300
True or False: cos2x+2sin^2x=2
False.
300
Sin^2(x/2)-cos^2(x)
-cos(x)
300
Cot(180)
Undefined.
400
Tan^2-Sec^2
-1
400
Solve: sin(pie/4 - B)
Square root 2/2(cosB-sinB)
400
Solve: sin2(x)+cos(x)=0 for 0<x<180
90.
400
For an acute angle X, tan(X)tan(X/2)
Sec(X)-1
400
Csc(X)-csc(X)cos^2(x)
Sin(X)
500
Convert 9pie/5 into degrees. What quadrant does it terminates?
324, Quadrant IV
500
Find the value of tan(pie+x) if x terminates in Quadrant III and sin(x)=-5/13