Cos90 - Study guides, Class notes & Summaries

AQA A Level Maths Exam (2024) || All Questions & Solutions (100% Correct) AQA A Level Maths Exam (2024) || All Questions & Solutions (100% Correct) Straight line equation formula - ANSWER - y-y1 = m(x-x1) Perpendicular straight lines - ANSWER - m1 x m2 = -1 Log(a)b=c - ANSWER - a^c=b Log(10)x + Log(10)y = - ANSWER - Log(10)xy Log(10)x - Log(10)y = - ANSWER - Log(10)x/y kLog(10)x = - ANSWER - Log(10)x^k Displacement dy/dx = - ANSWER - Velocity Velocity dy/dx = - ANSWER - ...

Sin90° or π/2 - 1 Cos90° or π/2 - 0 Tan90° or π/2 - Infinity Cot90° or π/2 - 0 Sin^2+cos^2 - 1 1+tan^2 - sec^2 1+cot^2 - csc^2 Arcsin - sin^-1 or the inverse of sin Process of induction - the process of making inferences based upon specific, concrete cases or examples. S^2 or variance - (Σ(x-x̅)^2)/(n-1) Standard Deviation (s) - √(Σ(x-x̅)^2)/(n-1) Simple linear Regression - y=a+bxi b=(Σxy-nx̅ȳ)/(Σx^2 - nx̅^2) a=(Σy - bσy)/n Sin...

sin-cos identity: sinx = cos(90-x) sin-cos identity: cosx = sin(90-x) 90º, pi/2 (0,1) 180º pi radians 30º, pi/6 (√3/2, 1/2) 45º, pi/4 (√2/2, √2/2) 60º, pi/3 (1/2, √3/2) 30, 60, 90 triangle x, x√3, 2x 45, 45, 90 triangle x, x, x√2 Circumference 2(pi)r or (pi)D tangent identity: tanx= sinx/cosx the distance from a data set's largest point to its smallest point range the measure of how spread-out the set's data points are standard deviation ...

Accuplacer Exam 136 Questions with Verified Answers Define - "ordered pairs" - CORRECT ANSWER = (x, y) = a single point on a coordinate plane Define - "origin" - CORRECT ANSWER = (0,0) = the point where two axes meet Explain - "quadrants" - CORRECT ANSWER = when the two axes (x and y) cross they form 4 quadrants Explain what - "the distance" means Define - "distance formula" for a line(s) - CORRECT ANSWER = "distance" - the length between two points on a plane - (x1...

Accuplacer Math Terms Accuplacer Math Terms Accuplacer Math Terms Define - "origin" = (0,0) = the point where two axes meet Explain - "quadrants" = when the two axes (x and y) cross they form 4 quadrants Explain what - "the distance" means Define - "distance formula" for a line(s) = "distance" - the length between two points on a plane - (x1, y1), (x2, y2) * does not have to be forming a line *distance is ALWAYS positive = (Distance (d) = "square root" all over - [...

Accuplacer Exam 136 Questions with Verified Answers Define - "ordered pairs" - CORRECT ANSWER = (x, y) = a single point on a coordinate plane Define - "origin" - CORRECT ANSWER = (0,0) = the point where two axes meet Explain - "quadrants" - CORRECT ANSWER = when the two axes (x and y) cross they form 4 quadrants Explain what - "the distance" means Define - "distance formula" for a line(s) - CORRECT ANSWER = "distance" - the length between two points on a plane - (x1...