SOLUTION: Dear Sir/Madam;
A pleasant day! kindly help me in this Circular Functions problem:
Find x so that P(x, -√13/4) lies on the unit circle in the third quadrant, find θ.
Algebra.Com
Question 827226: Dear Sir/Madam;
A pleasant day! kindly help me in this Circular Functions problem:
Find x so that P(x, -√13/4) lies on the unit circle in the third quadrant, find θ.
Thank you very much for your help!
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Find x so that P(x, -√(13)/4) lies on the unit circle
in the third quadrant, find θ.
-------
The radius is 1.
x is negative in the third quadrant
----
Equation:
Use Pythagoras to get:
x^2 + (sqrt(13)/4)^2 = 1
----
x^2 = 1-(13/16) = 3/16
x = -sqrt(3)/4
=====================
theta = arctan[(sqrt(13)/4)/(sqrt(3)/4)] = arctan(sqrt(13/3)) = 64.34 degrees
----
Solution in QIII:: 180+64.34 = 244.34 degrees
===========
Cheers,
Stan H.
===========
RELATED QUESTIONS
Dear Sir/ Madam;
A pleasant day! Can you please help me answer this problem... (answered by jsmallt9)
Dear Sir/Madam;
Good day! kindly help me with this problem:
Express the given... (answered by stanbon)
Dear Sir / Madam;
Good day! Kindly help me in solving this problem:
Find the... (answered by stanbon)
Dear Sir/Madam,
Good day! Kindly help me on this problem:
Find the value of k so that... (answered by lwsshak3,solver91311)
Dear Sir/Madam,
A pleasant day! can you please help me with this problem, guide me in... (answered by rothauserc,solver91311)
Dear Sir/Madam;
A pleasant day! please help me with this sequence problem. Consider (answered by Edwin McCravy)
Dear Sir/Madam;
A pleasant day! Please help me with this Math problem about... (answered by richard1234)
Dear Sir/Madam,
A pleasant day! Please help me with this problem on quadratic equation:
(answered by Alan3354,josgarithmetic)
Dear Sir/Madam,
A pleasant day! Please help me with this math problem, this is... (answered by lwsshak3)