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 ▸If a ball is dropped from 6m above the ground, how long does it take to hit the floor and what is its speed at impact (assuming air resistance is negligible)?
How do you find the equation of a line at a given point that is tangent to a circle?
Use implicit differentiation to find dy/dx of the equation 3y^2 + 2^x + 9xy = sin(y).
Find dy/dx when y = 4x^1/2