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without using trigonometric table find the value of
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19/3
Solution:-
- tan²60° + 4cos²45° + sec²30° + 5cos²90°—————————————————————
cosec 30° + sec 60° - cot²30°
- (√3)² + 4 × (1/√2)² + (2/√3)² + 5 × 0——————————————————
2 + 2 - (√3)²
- 3 + 2 + 4/3 = 19/3
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