Find slope
slope between (x1,y1) and (x2,y2) is (y2-y1)/(x2-x1)
given (
(5,19) and (9,23)
slope=(23-19)/(9-5)=4/4=1
slope=1
equation with point (x1,y1) and slope is m is
y-y1=m(x-x1)
given
(5,19)
y-19=1(x-5)
y-19=x-5
y=x+14
Answer:
we should know that :
sin ( a + b ) = sin a * cos b + sin b cos a
For the given equation :
sin (π + q) = sin π * cos q + sin q * cos π
sin π = zero and cos π = -1
∴ sin (π + q) = 0 * cos q + sin q * (-1) = - sin q
<u>Another solution:</u>
The angle (π + q) lies in the third quarter ⇒ (1)
(π + q) and (-q) are supplementary angles ⇒ (2)
From (1) and (2)
sin(π + q) = -sin q
Whats the question? I cant answer the question if there is no question.
Put 0s for each x and y. Then connect together.