Express the following as a function of a single angle. Cos^2(81°) – sin^2(81°) Question Express the following as a function of a single angle. Cos^2(81°) – sin^2(81°) in progress 0 Math Margaret 2 months 2021-11-19T08:53:12+00:00 2021-11-19T08:53:12+00:00 1 Answer 0 views 0

## Answers ( )

Answer:=(162°)Step-by-step explanation:(81°) – (81°)

we know that;

(x°) – (x°) = (2x°)

(81°) – (81°) = (2 * 81°)

=(162°)