SOLUTION: if sin x= 8/17, where 0 degree < x < 90 degree, determne the exact vaule of cos (x + 180)

Question 53883: if sin x= 8/17, where 0 degree < x < 90 degree, determne the exact vaule of cos (x + 180)
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
if sin x= 8/17, where 0 degree < x < 90 degree, determne the exact vaule of cos (x + 180)
----------
cos(x+180)=-cosx
If sinx = 8/17 , cos x = 15/17
So cos(x+180)=-15/17
cheers,
Stan H.
RELATED QUESTIONS
if sin x= 4/5, where 0 (answered by edjones)
Solve for x in the equation cos x - cos 2x = 1/2 where x e (0 degree, 180... (answered by Alan3354)
what is the quadrant of x if 90 degree < 2x < 180 degree? (answered by jim_thompson5910)
Please help me: 1. The radian measure of angle containing x degree is: A.pi.x/180 B.... (answered by richard1234)
find sin 0 if cos 0=-2/3 and 90 degree<0>180... (answered by stanbon)
1. if sin 21 degree = x/y, then sec 21 degree - sin 69 degree is equal to ? 2. if Sec... (answered by josgarithmetic)
If sin(2x+30)0 degree = cos 40 degree..find x Thanking You In... (answered by lwsshak3)
Simplify the following: sin (90� + x) sin (180� + x) + cos (90� + x) cos (180� �... (answered by robertb)
sin(x) = 8/17 and π/2 (answered by Alan3354)