Question

Tan^2 30+ 1/2 sin^2 45 + 1/3 cos^2 30 + 1/tan^2 60 =1 1/6

Answer 1

Step-by-step explanation:

tan²(30 )=1/3 sin²(45º )=1/2 cos²(30º )=3/4 tan²(60º )=3

1/3 + 1/2 ×1/2 + 1/3×3/4 +1/3×3

=1/3 +1/4+1/4+1

=1/3+1/2+1

=(2+3+6)/6

=11/6

Hence proved