Pure one Doubt!!

[mousa]

plz can anyone Explain why a = 6 b = 2 c = 3 in Q 4 part a) ?? and answer Part b) find the paper attatched below...

[astarmathsandphysics]

Gimme a minute

[astarmathsandphysics]

Graph is moved up 3 so c=3
distance from crest to trough is 9--3=12 but for the sine curve it should be 1--1=2 so 6 times bigger so a=6.
The graph packs 2 wavelengths into 0-2pi so b=2

[Saladin]

and the answer to part b is 165^o or also 11/12pi

[mousa]

Graph is moved up 3 so c=3
distance from crest to trough is 9--3=12 but for the sine curve it should be 1--1=2 so 6 times bigger so a=6.
The graph packs 2 wavelengths into 0-2pi so b=2

sir, i am confused, can you explain more?? or gimme some notes on this topic,nothin regarding that is mentioned in the book

[astarmathsandphysics]

wait one mo.

[astarmathsandphysics]

http://www.astarmathsandphysics.com/a_level_maths_notes/C3/a_level_maths_notes_c3_transformations_of_graphs.html