4/cot^2 30+1/sin^2 30 - 2 cos^2 45-sin0
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2
Answer:
13/3
Step-by-step explanation:
4/cot² 30° + 1/sin²30°- 2cos²45° -sin0°
= 4/3+ 1÷1/4 -2×1/2 - 0
= 4/3+ 4-1
= 13/3
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