Question

3 tan²30degree + sec²45 degree — tan²60degree​

Answer 1

Answer:

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Answer 2

Answer:

-1

Step-by-step explanation:

tan30° = 1/√3

sec45° = √2

tan60° = √3

3×(1/√3)^2 + (√2)^2 - (√3)^2

3/3 + 2 - 3

2-3

-1