Question

Q: 8. sin² 45° - 2 tan²60° + 3 cot² 30° -2 cos² 45°​

Answer 1

Answer:

sin²45° - 2tan²60° + 3cot²30 - 2cos²45°

(1/√2)² - 2(√3)² + 3(√3)² - 2(1/√2)²

1/2 - 2×3 + 3×3 - 2×1/2

1/2 - 6 + 9 - 1

1/2 + 3 - 1

1/2 + 2

1+4/2

5/2

the answer in your question Hope you like this