ProVe : AB sinf Sin(2 B)
=
2 .
.
+
k AB
C
CA
= =CA
sinf
B)]
·
51 1980
2
sind sin [180° -
(2 +
B
90 -
8 188 -
( B) +
v CA - k AB = CA SinC
K
SinO sin(a +
B)
⑦
BA AB
= sint ·
Sinc
D
sin(x +
B)
.. AB = ksind
Sintsin( +
B)
=>
RHS
M
fre
ge
we a s
graph
to
S I
I
1) amplitude :
positive -
distance from x-axis -
StartS At 1
1
-> co-efficient of ratio
ad iso 270 360
-
1
↳ >
period
period amount of full within 3600
2)
graphs
-
(co-efficient of
angle)
:
-> 360
B
/Co-efficient of angle) amplitude from
3)
Mothergraphs 900 space before
turning point reading off
graph
:
calculating
->
steps when :
=
(1sty-boundary) (andy-boundary)
-
=
a
4) shifted graph shift :
-loose number :
up(t)/down)-1
/left (1)
->
interference on
eclangle
:
right(-) If
~
upper boundary
⑧ 13
draw OG
graph first + then shift to
get actual
graph ·
Range
:
yE(-1 :
↳ lower
boundary
↳ erase OG after
Domain
given
· :
f(x) moved
185x 1 - normal
cosgraph unit down
=
I =
-
.
1056 -1
y
=
↳*
AMPliEUDe :
1
↳ period : I =
360
↳ Sift :
↓ 1
2
-
*
⑧
do
5
iso' is
I I I ' I
180
X
④ ⑤ -
-
1 *
X
D
( -
180 -
2)x (180 ; -
2)
; - -
2 *
F
& remember to label
your graph
(ie not on axis)
⑧ write co-ordinates of
hanging points
: