Question

sin^2 30° + cos^2 30° + tan^2 45°​

Answer 1

Step-by-step explanation:

(1/2)²+(√3/2)²+(1)²

1/4+3/4+2

1+2

3

Answer 2

Step-by-step explanation:

$sin ^{2} 30 + cos ^{2} 30 + \tan^{2} 45 \\ \\ (1 \div 2) ^{2} + ( \sqrt{3} \div 2) ^{2} + (1) ^{2} \\ \\ = 1 \div 4 + 3 \div 4 + 1 \\ \\ = 8 \div 4 \\ \\ = 2$

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