Thursday

July 31, 2014

July 31, 2014

Posted by **sally** on Saturday, April 17, 2010 at 5:57pm.

sin(180−è) = sin 180−sin è, and, because sin 180 is zero, it follows that sin(180−è) is the same as −sin è. Is this answer correct? If not, what is a correct way to express sin(180−è)

in simpler form? Answer the same question for cos(180 − è).

- Trig -
**bobpursley**, Saturday, April 17, 2010 at 6:01pmIsn't

Sin(A+B)=SinA Cos B + CosA sinB

sin(180-e)= Sin180 Cos -e + Cos180 sin -e

= 0 -sin -e=sine

**Related Questions**

Trig - A. Find simpler, equivalent expressions for the following. Justify your ...

trig - I am very confused about the concepts of.. sin è = sin(180 - è) sin (180...

maths - Choose the option that gives an expression for the indefinite integral...

trig - solve for the equation x sin x= -.35 180<x<270 sin x= .2 90<x<...

trigonometry - is this correct? sin 255degrees 225 = 180 + 45 sin(225) = sin(180...

Math - θ is an angle such that 180∘<θ<270∘, and sin...

Trigonometry - 2. Choose the point that lies on the curve r = 2 – 3 sin θ. ...

Trigonometry - 2. Choose the point that lies on the curve r = 2 – 3 sin θ. ...

trigonometry - 2. Choose the point that lies on the curve r = 2 – 3 sin θ. ...

trigonometry - 2. Choose the point that lies on the curve r = 2 – 3 sin θ. ...