Question

sin30°. Cos45° + sin45°

. cos60° = …………



pls give the right ans I will mark u only correct answer​

Answer 1

We know that,

sin 30° = 1/2

cos 45° = 1/√2

sin 45° = 1/√2

cos 60° = 1/2

So, sin 30° . cos 45° . sin 45° . cos 60°

= 1/2 × 1/√2 × 1/√2 × 1/2

= 1/4 × 1/2

= 1/8

Answer:

sin 30°. cos 45°. sin 45°. cos 60° = 1/8

Answer 2

Answer:

Heartbeat. The walls of the chambers of the heart are made up of muscles. These muscles contract and relax rhythmically. This rhythmic contraction followed by its relaxation constitute a heartbeat.