Question

sin² 30° + 4 cot²45-sec²60​

Answer 1

14+(4-3/4)

14+13/

14/4

Answer 2

sin^2 30° + 4 cot^2 45° – sec^2 60°

= (1/2)^2 + 4 × (1)^2 – (2)^2

=1/4 + 4 – 4

=1/4