Wednesday

July 23, 2014

July 23, 2014

Posted by **anonymous** on Friday, January 8, 2010 at 12:39am.

- MATH ANALYSIS -
**drwls**, Friday, January 8, 2010 at 7:52amSubtract 2 pi from (11/4) pi and you get (3/4)pi. That is in the second quadrant, where the sin and csc functions are positive.

The reference angle is

pi - (3/4)pi = pi/4

Thus we have

csc(11/4)pi = csc(3/4)pi = csc(pi/4)

= 1/sin(pi/4) = sqrt2

The sine is 1/sqrt2 because the reference angle is 45 degrees. You can get sine 45 from the Pythagorean theorem.

**Related Questions**

MATH ANALYSIS - how do i evaluate the function csc 11 pie/4 without using a ...

MATH ANALYSIS - how do you find the function csc 225 degrees without using a ...

math - evaluate the expressions below and leave them in radical form. 1. sin(pie...

pre calc - My teacher asked for the EXACT VALUES of sin(pi/6) cos(pi/4) csc(pi/3...

Math - evaluate without using a calculator lg(1/10)

alg 2 - evaluate cot 11 pie/6 to the nearest hundred angle given in radians.. is...

trig - How do you decide if csc=74 is greater than or less than cos=74 without ...

math - Evaluate the expression without using a calculator. log under 2 1

Math - Evaluate the expression without using a calculator: log4(2)= ____? Use a ...

algebra2 - evaluate without using a calculator 216 2/3