Hey Guys i need help with this question
b
i) Express the tan 2θ in term's of tan θ
ii) Hence evaluate tan 22.5 degree's om surd form by letting θ= 22.5 degree's from i
Obviously i can the first question, but i don't know how to do second one.
Thanks
W.Y
You could listen native title and how it hasn't enought for Aboriginal's in terms of osical justice in area's such as health,education, etc. But you could also mention how recently the government has suspend the Anti-discrimination Act on Aboriginals and instead place a policy of intervention (...
Prove
(sin 150 + cos 270 + tan 315 )^2= sin^2 135 cos^2 225
Just wondering is there are faster method then finding the values of both sides then comparing ?
Here is my advice to you from a person who got in Fort Street at yr 11 .
TEST
MATHS
- REVISE ALL SYLLABUS CONTENT
( GEOMETRY ( e.g having 3 points of parallelogram and finding the 4th point was a question in last year test ) , ALGEBRA ( e.g simultaneous equations ), TRIGONOMETRY, STATISTIC...
Q1) sound waves leaving one medium enter another where their speed is much greater. in both media the frequency is constant. expain the difference between sound waves in each medium.
A1) Basically, if you enter from one medium to another medium and your speed increase it suggest the new medium...
Most people, say to me that cambridge is either
1) Confusing and hard at explaining concepts
2) Too much information- questions not relate to syllabus, etc.
But personally, i enjoy cambridge the most.