Friday

July 25, 2014

July 25, 2014

Posted by **Rick** on Thursday, February 28, 2008 at 1:43pm.

y + cos x cos pi over6 + sin x sin pi/6 by first rewriting the right side in the form cos(A-B)

- trig -
**Reiny**, Thursday, February 28, 2008 at 4:20pmYou probably meant to write

y = cos x cos pi over6 + sin x sin pi/6 which is

y = cos(x - pi/6)

first sketch very faintly, perhaps as a dotted line, the function y = cosx from 0 to 2pi

then move this graph pi/6 units to the right.

**Related Questions**

TRIG! - Posted by hayden on Monday, February 23, 2009 at 4:05pm. sin^6 x + cos^6...

Math - Calculus - The identity below is significant because it relates 3 ...

trig - Reduce the following to the sine or cosine of one angle: (i) sin145*cos75...

trig - it says to verify the following identity, working only on one side: cotx+...

tigonometry - expres the following as sums and differences of sines or cosines ...

Mathematics - Trigonometric Identities - Let y represent theta Prove: 1 + 1/tan^...

Trig - Given: cos u = 3/5; 0 < u < pi/2 cos v = 5/13; 3pi/2 < v < ...

Precal - I do not understand how to do this problem ((sin^3 A + cos^3 A)/(sin A...

algebra - Can someone please help me do this problem? That would be great! ...

trig - The expression 4 sin x cos x is equivalent to which of the following? (...