Question

sin 75 degree cos 15 degree​

Answer 1

Answer:

Cos^2 15°

Step-by-step explanation:

Sin 75° Cos 15°

Sin (90°- 15°) Cos 15°

Cos 15° Cos 15°

Cos ^2 15°

Answer 2

Step-by-step explanation:

$\sin(75 )\cos(15) \\ \sin(90 - 15) \cos(15) \\ \cos(15 )\cos(15) \\ (\sqrt{3} + 1 \div \sqrt{2} ) {}^{2} \\ (2 + \sqrt{3} \div 4)$