Write sin(4x) in terms of sin and cos.

Related Further Mathematics A Level answers

Find the eigenvalues for the matrix (4/2/3,2/7/0,-2/1/8)

Answered by Tutor136255 D.

---

How can I find the explicit formula for the inverse of sinh?

Answered by Stefan G.

---

Sketch the locus of z on an Argand diagram if arg[(z-5)/(z-3)] = π/6

Answered by Faris A.

---

Given z=cosx+isinx, show cosx=1/2(z+1/z)

Answered by Chris S.

---