Wednesday

July 30, 2014

July 30, 2014

Posted by **Anonymous** on Monday, February 1, 2010 at 9:54pm.

- trig -
**drwls**, Monday, February 1, 2010 at 11:36pmI do not understand your notation, è=2ð/3.

Do you mean theta = 2 pi/3?

The sine of 2 pi/3 is the same as the sine of pi/3, which is (sqrt3)/2

The cosine of 2 pi/3 has the same absolute value as cos pi/3 (1/2), but has opposite sign

**Related Questions**

precal - can anyone help me with this question. Let P be the point on the unit ...

trig - Find the exact value of the trigonometric function: sec(-pi/12) I am not ...

math - correction: use the unit circle to fin the ecaxtvalue for all trig ...

trig - Let P be the point on the unit circle U that corresponds to t. Find the ...

Trig - find the exact values of the six trig functions of angle... sin(-...

Trig - Find the exact circular function value for: sec(23pi/6) I know the answer...

trig - If cos 0 = - 1/2 and tan 0 > 0, find the quadrant that contains the ...

trig - what is the exact value of 7pi for all trig func.?

trig - find the exact values of the six trig functions of theta equals six pi ...

trig - Let be an angle in standard position and the point (a, b) be the point ...