Question

sin²45°. cosec² 30– sec² 60°

Answer 1

here is ur answer my friend :) always input the values in these types of questions....sry for the previous pic

Answer 2

Hi there !!

sin²45°. cosec² 30– sec² 60°

${ \frac{1}{ \sqrt{2} } }^{2} \times {2}^{2} - {2}^{2} \\ \\ \frac{1}{2 } \times 4 - 4 \\ \\ = 2 - 4 \\ \\ = - 2$

Thanks :)