Sin^2 2a+cos^2 2a+5??

Question

Sin^2 2a+cos^2 2a+5
??

Answer 1

Sin^2 2a+cos^2 2a+5=1-cos^2 2a+cos^2 2a+5=1+5=6
Sin^2 2a+cos^2 2a=1-разложили по формуле