Question

4/5tan^2 60°+3sin^2 60° --------------- (find the values of)​

Answer 1

Answer:

Sin 60 =root3/2

Sin^2(60)=(root 3/2)×(root 3/2)=3/4

Tan 60=root 3

so tan^2 (60)=root 3×root 3=3

so 4/5 tan^2(60)+3sin^2(60)

=(4/5)×3+3×3/4

=12/5+9/4

=(12×4+5×9)/5×4

=93/20