# confused c2 trig graph

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#1
i am self teaching, for the past week i was learning about graph of sinx cos x and tanx, i looked at examsolutions and their is no exam questions (except one small one), so i was wondering how would this help me in the exam, does it link in with trig identity as i am a bit confused why i am learning it.
0
6 years ago
#2
just helps you with transformations of trig functions eg 3sinX or 4cosX/2 etc as you can read off a y value and then plug in values to work out x

just learn the c1 ch4 transformations and apply them to the sin cos and tan graphs
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#3
(Original post by tazza ma razza)
just helps you with transformations of trig functions eg 3sinX or 4cosX/2 etc as you can read off a y value and then plug in values to work out x

just learn the c1 ch4 transformations and apply them to the sin cos and tan graphs
yh i understand that but does this connect with trig identitys
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6 years ago
#4
(Original post by mrdetermination)
yh i understand that but does this connect with trig identitys
The ability to sketch the trig graphs is a great help when solving equations or inequalities.
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6 years ago
#5
(Original post by mrdetermination)
yh i understand that but does this connect with trig identitys
No it does not connect with trig identities it will be useful for finding solutions to a trig equation

TBH it is GCSE knowledge which is why there are no specific A Level questions on it
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