Maths Rules

Used when f(x) = u.v

((u'v)+(v'u)) =dy/dx

For when f(x) = f(u)^n

dy/dx = (n-1)(f'(u))^n-1

For when f(x) = u/v

dy/dx = ((u'v)-(v'u))/v^2

sin²x + cos²x = 1
1 + cot²x = cosec²x
tan²x + 1 = sec²x
cos2x = cos²x - sin²x = 2cos²x - 1 = 1 - 2sin²x
sin2x = 2sinx cosx
tanx = sinx
cosx