Sunday

January 25, 2015

January 25, 2015

Posted by **kelly** on Wednesday, June 9, 2010 at 7:02pm.

- trig -
**Henry**, Wednesday, June 16, 2010 at 5:53pmGiven: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

**Answer this Question**

**Related Questions**

trig - find the 5 other trig functions if cos(theta) = square root of 2/2 and ...

Trigonometry - Thank you STEVE!!!!! Suppose that Cos (theta) = 1/square root 2 ...

trig - If cosecant of theta equals 3 and cosine of theta is less than zero, find...

Math - Solving Trig Equations - Solve each equation for o is less than and/or ...

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 ...

math - There are no typos and no work b/c I don't know how to do them. Thanks. 1...

Trig - 1. Establish the identity: sin(theta+3pi/2)=-cos(theta) 2. Find the exact...

Algebra II - Multiple Choice (theta) means the symbol 0 with the dash in it. 1.)...

trig - when sin theta+cos theta=square root of 2,find the solution of sin^3 ...