Posted by kelly on Wednesday, June 9, 2010 at 7:02pm.
Given:CosA=SQRT2/2
Since the cosine is positive and the
tangent and cotangent are negative
(less than 0), we are in the 4th Quad-
rant. CosA=sqrt2/2=x/r, x=sqrt2, r=2,
Y=sqrt(r^2-x^2)=sqrt(4-2)=+/-sqrt2,
Y=-sqrt2(4th Quadrant).
SinA=y/r=-sqrt2/2.
CosA=sqrt2/2=x/r(Given)
TanA=y/x=-sqrt2/sqrt2=-1
cscA=-(2/sqrt2).
secA=2/sqrt2
CotanA=sqrt2/-sqrt2=-1
Related Questions
trig - find the 5 other trig functions if cos(theta) = square root of 2/2 and ...
trig - If cosecant of theta equals 3 and cosine of theta is less than zero, find...
trig - Find the exact values of the other trig functions of theta given sec ...
trig - given that 0 is less then or equal to theta and theta is less then or ...
Trig - 1. Establish the identity: sin(theta+3pi/2)=-cos(theta) 2. Find the exact...
trig - when sin theta+cos theta=square root of 2,find the solution of sin^3 ...
math - There are no typos and no work b/c I don't know how to do them. ...
Math - Solving Trig Equations - Solve each equation for o is less than and/or ...
precalc h - sin(theta)/1-cos(theta) + 1-cos(theta)/sin(theta) = 2csc(theta) That...
Math - There are no typos and no work b/c I don't know how to do them. ...
For Further Reading
