Trigonometryhard · Past Paper
Simplify sin^6 A + cos^6 A + 3 sin^2 A cos^2 A.
A0
B1
C2
D3
✓ Correct Answer: B — 1
Using (a^2+b^2)^3 expansion where a=sin and b=cos, it results in (sin^2 + cos^2)^3 = 1.
Share this question
✓ Correct Answer: B — 1
Using (a^2+b^2)^3 expansion where a=sin and b=cos, it results in (sin^2 + cos^2)^3 = 1.
Share this question