Question

4/cot²30°+1/sin²60°-cos²45°​

Answer 1

Answer:

13/6

Step-by-step explanation:

4/(√3)² + 1/ (√3/2)² - (1/√2)²

4/3 + 4/3 - 1/2

8/3 - 1/2

LCM = 6

(16- 3)/6

13/6

Answer 2

Step-by-step explanation:

cot²30° = ( 2/√3)²

cot²30° = 4/3

sin²60° = 3/4

cos²45°= 1/2

so putting values now

4/4/3 + 1/3/4 - 1/2

12/3 + 4/3 - 1/2

16/3 - 1/2

32- 3 / 6

29/6

hence value is 29/6