1. sin 30° × sin 60° + cos 30° × tan 45° = 2. sec 45° + tan 60° ( sin 30° + cosec 60°)= 3. sin² 60°+ cos² 30°+ tan 45°/sec 60° × cot 60° = tolong dibantu kak

soal nmr 1
[tex] \frac{1}{2} \times \frac{1}{2} \sqrt{3} + \frac{1}{2} \sqrt{3} \times 1 = \frac{3}{4} \sqrt{3} [/tex]
soal nmr 2
[tex]2 \sqrt{2} + \sqrt{3} \times ( \frac{1}{2} + 2 \sqrt{2)} = 2 \sqrt{2} + \frac{1}{2} \sqrt{3} + 2 \sqrt{6} [/tex]
soal nmr 3
[tex] \frac{3}{4} + \frac{3}{4} + \frac{1}{2} \times 2 \sqrt{3} = \frac{6}{4} \sqrt{3} = \frac{3}{2} \sqrt{3} [/tex]