Question

evalute: 2 sin^2 30 cot 30 - 3 cos^2 60 sec^2 30​

Answer 1

2 sin^230 cot30 - 3 cos^260sec^230

2×( 1/2)^2×√3 - 3×(1/2)^2 ×(2√3/3)^2

2×1/4×√3-3×1/4×12/9

1/2×√3-9/9

1/2×√3-1

√3/2-1

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Answer 2

Answer:

√3/2

Step-by-step explanation:

2sin²30 cot30-3cos²60 sec²30

=2×(1/2)²×√3-(3×1/2)²×(2/√3)²

=2×1/4×√3-3×1/4×4/3

=√3/2-3/4×4/3

=√3/2 is the answer

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