One important question type to be able to answer is integrating squared trig functions. like cos^2(x)
This question requires selecting the correct double angle formulae.
cos(2x)=2cos^2(x)-1 is rearranged to 1/2(cos(2x)+1)
this can now be integrated with the students knowledge of standard integrals.
Cos integrates to sin and numbers integrate to x . Remembering the factor of 2 from the fact that its cos (2x) we get ;
1/4 (sin(2x)) +1/2 x
AR
Related Maths A Level answers
All answers ▸The Curve C shows parametric equations x = 4tant and y = 5((3)^1/2)(sin2t) , Point P is located at (4(3)^1/2, 15/2) Find dy/dx at P.
find the value of dy/dx at the point (1,1) of the equation e^(2x)ln(y)=x+y-2
Find the coordinates of the turning points of the curve y = 4/3 x^3 + 3x^2-4x+1
Differentiate (2^x)(5x^2+5x)^2.