Wednesday

January 28, 2015

January 28, 2015

Posted by **John** on Thursday, September 14, 2006 at 8:37pm.

You should know the basic relation between sine and cosine is

sin(x)=cos(90 -x) Thus

B+15 = 90 - (2B+30) so

3B +45 = 90 or

3B = 45 and B =45/3

No, you cannot just set them equal to each other.

**Answer this Question**

**Related Questions**

Trig - Find cos(s+t) if cos s= -1/2 and sin t= 3/5, s and t are in quadrant II. ...

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

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

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

Calculus 12th grade (double check my work please) - 1.)Find dy/dx when y= Ln (...

Trig - Solve in terms of sine and cosine: sec(x) csc(x)- sec(x) sin(x) so far I ...

Math - Solve this equation algebraically: (1-sin x)/cos x = cos x/(1+sin x) --- ...

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

Limit Calculas - Evaluate lim->4 sin(2y)/tan(5y) Here is what I have so far. ...

calculus - Evaluate lim->4 sin(2y)/tan(5y) Here is what I have so far. I am ...