Maths - C4 All the formula I need to know for C4. 3.0 / 5 based on 16 ratings ? MathematicsA2/A-levelAll boards Created by: Will EdgellCreated on: 30-04-10 14:12 Integration Integrated forms: Sinx = -Cosx + c Cosx = Sinx + c Sec"2x = tanx + c Cosec"2x = cotx + c Sectanx = -cosecx + c Tanx = -ln(cosx) + c Cotx = ln(sinx) + c 1 of 4 Differentiation Differentials: Cosx = -sinx + c Sinx = cosx + c Cotx = -cosec"2x + c Tanx = sec"2x + c Secx = tanxsecx + c Cosecx = -cosecxcotx 2 of 4 Trigonometry identities All identities I need: Sin"2x + cos"2x = 1 1 + tan"2x = sec"2x 1 + cot"2x = cosec"2x sin(a+/-b) = sinacosb +/- cosasinb cos(a+/-b) = cosacosb -/+ sinasinb tan(a+/-b) = sin2x = 2sinxcosx = cos2x = cos"2x - sin"2x = 2cos"2x - 1 = 1 - 2sin"2x = tan2x = cot2x = sin3x = 3sinx - 4sin"3x cos3x = 4cos"3x - 3cosx tan3x = cot3x 3 of 4 Continued cos2x = cos"2x - sin"2x = 2cos"2x - 1 = 1 - 2sin"2x = tan2x = cot2x = sin3x = 3sinx - 4sin"3x cos3x = 4cos"3x - 3cosx 4 of 4
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