sin(a+b) = sinacosb + cosasinb
sin(a-b) = sinacosb - cosasinb
adding we get sin(a+b) + sin(a-b) = 2sinaccosb
so sinacosb = 1/2sin(a+b) + sin(a-b)
Answer: Sin a
Answer:
27!!! I understand it!
Step-by-step explanation:
Monday: 1 , 2 (Anthony and his 2 friends)
They EACH invited two friends!
Tuesday: Anthony: 2 Friend 1: 2 Friend 2: 2
The same!!
Wednesday: A: 2 F1: 2 F2: 2
THE SAME AGAIN!
Thrusday: A: 2 F1: 2 F2: 2
THE SAME AGAIN!!
Friday: A: 2 F1: 2 F2: 2
1 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 = 27
Hope it helps!!
Please be kind to mark Brainliest
Thanks!!! ☺
A(-4,5)
B(-2,8)
C(1,2)
up= addition to y
down= subtraction to y
right= addition to x
left= substraction to x
Answer:
$648.
Step-by-step explanation:
$400+50% = $600
$600+8%=$648
Y
=
−
2
x
+
5
y
=
-
2
x
+
5
Use the slope-intercept form to find the slope and y-intercept.
Tap for more steps...
Slope:
−
2
-
2
y-intercept:
(
0
,
5
)
(
0
,
5
)
Any line can be graphed using two points. Select two
x
x
values, and plug them into the equation to find the corresponding
y
y
values.
Tap for more steps...
x
y
0
5
5
2
0
