Question

Prove that: cos^2 30° - sin^2 30° = cos 60°.


answer pls fast​

Answer 1

Answer:

Step-by-step explanation:

cos∧2 30°-sin∧2 30°

=(√3/2)∧2 - (1/2)∧2

=3/4-1/4

=2/4

=1/2

=cos60°