Question

Sin30°+cos45°×cos30°+sin45°

Answer 1

Step-by-step explanation:

Sin 30° + Cos 45° . Cos 30° + Sin45°

1/2 + 1/√2 . √3/2 + 1/√2

√2 + 2/2√2 . √3 . √2 + 2/2√2

√2 + 2/2√2 . 8/2√2

1 . 2√2

2√2

∴ Sin 30° + Cos45° . Cos30° + Sin45° = 2√2