Differentiate sin(x)cos(x)
let sin(x)=u , let cos(x)=v
du/dx = cos(x), dv/dx = -sin(x)
d[sin(x)cos(x)]/dx = v.du/dx + u.dv/dx
= cos^2(x) - sin^2(x)
JD
Related Maths GCSE answers
All answers ▸Write 0.2(54) as a fraction in its simplest form. (Where 0.2(54) = 0.254545454...)
Complete the square for x^2 + x - 6.
Prove algebraically that (2n + 1)^2 – (2n + 1) is an even number for all positive integer values of n. (3 marks)
Expand and simplify (x − 4)(2x + 3y)^2