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  1. Evaluate :
    tan²60° + 4cos²45° + 3sec²30° + 5cos²90°
    cosec 30° + sec 60° - cotsec²30°

    1. 4
    2. 9
    3. 7
    4. 1
Correct Option: B

tan² 60° + 4cos² 45° + 3sec² 30° + 5cos² 90°
cosec 30° + sec 60° – cot² 30°

= (√3)² + 4 ×
1
² + 3
2
² + 5 × 0
√2√3
2 + 2 - ((√3)²

= 3 + 4 ×
1
 +
3 × 4
 + 0
23
4 - 3

= 3 + 2 + 4 = 9


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