SOLUTION: if a is in the third quadrant and cosa=15/17, find the value of cosa/2.

Algebra.Com
Question 1150482: if a is in the third quadrant and cosa=15/17, find the value of cosa/2.
Answer by ikleyn(52814)   (Show Source): You can put this solution on YOUR website!
.
if a is in the third quadrant and cosa=15/17, find the value of cosa/2.
~~~~~~~~~~~~~~~~~~~


If  "a"  is in the third quadrant,  then cos(a)  CAN  NOT  be equal to  .



RELATED QUESTIONS

if A is a acute angle.and cosA = 15/17 , wht will be the value of . COT ( 90- A... (answered by KMST)
Given cosA=16/65 and that angle A is in Quadrant I, find the exact value of cotA in... (answered by josmiceli)
if cosA=5/17 and sin b=24/25 where A is reflex and B is obtuse. Find the value of... (answered by solver91311)
If cosA=12/13 and sineB=-1/2 with A and B in the fourth quadrant find cos(A-B) and... (answered by Fombitz)
If cosA=12/13 and sineB=-1/2 eith A and B in the fourth quadrant find cos(A-B) and... (answered by Fombitz)
Given: A is a positive acute angle and cosA = 4/5. Find the exact value of sin(x +... (answered by stanbon)
If sinA - cosA = 0, find the value of CosecA (answered by Alan3354)
Please help me with this question,If SinA=2/3,and A is obtuse, find the exact value of,... (answered by MathLover1,ikleyn)
if cosA=3/5 what is the value of... (answered by robertb)