Trigonometry - Further Identities What identities do I need to know with secant, cosecant, and cotangent? There are two identities with?sec,?cosec?and?cot?that you need to know and be able to use: ...
繼去年英國(guó)愛(ài)丁堡大學(xué)出臺(tái)了最嚴(yán)苛的OSSD審核要求后，今年7月份澳洲的墨爾本大學(xué)，悉尼大學(xué)和昆士蘭大學(xué)等也陸續(xù)釋放信號(hào)并加強(qiáng)了OSSD學(xué)生換取無(wú)條件錄取的成績(jī)單溯源審核機(jī)制。OSSD課程申請(qǐng)被叫停，該如何自救？...
Reciprocal Trig Functions - Graphs What does the graph of the?sec?look like? The graph of?y?=?secx?looks like this: y-axis?is a?line of symmetry has?period?(ie repeats every)?360°?or?2π?radians ver...
Reciprocal Trig Functions - Definitions What are the reciprocal trigonometric functions? There are three reciprocal trig functions corresponding to the three regular trig functions Cotangent can al...
Using Log Graphs in Modelling What are log graphs? Log graphs are used when the scale of a graph increases or decreases exponentially It can very difficult to read specific values from graphs with ...
Using Exps & Logs in Modelling What is exponential modelling? Exponential modelling is where real-life situations are modelled using exponential growth and decay Exponential growth is typically...
Exponential Growth & Decay What are exponential growth and exponential decay? y = Aekt?is exponential?growth y = Ae-kt?is exponential?decay k > 0?so plus or minus sign in equation immediatel...
Exponential Equations What are exponential equations? An equation where the unknown is a power In simple cases the solutions can be “spotted” How do I solve exponential equations? Laws of Indices a...
Laws of Logarithms What are the laws of logarithms? There are many laws or rules of indices, for example am?x an?= am+n (am)n?= amn There are equivalent laws of logarithms (for a > 0) There are ...
