Question

Evaluate : cos 60° sin 30° + sin 60º cos 30°.​

Answer 1

Answer:

cos 60° sin 30° + sin 60º cos 30° is 1.

Step-by-step explanation:

Question:

cos 60° sin 30° + sin 60º cos 30°.

The values of the mentioned values are as follows:

cos 60° = 1 / 2

sin 30° = 1 / 2

sin 60° = $\sqrt{3} / 2$

cos 30° = $\sqrt{3} / 2$

Substituting the known values into our question we get:

=> (1 / 2) (1 / 2) + (\sqrt{3} / 2) (\sqrt{3} / 2)

=> 1 / 4 + 3 / 4

=> 1 + 3 / 4

=> 4 / 4

=>  1

Therefore, cos 60° sin 30° + sin 60º cos 30° is 1.

To be able to solve more such type of questions I advice you to learn the basic trigonometric ratios which we use. I have attached it in the attachment below. Kindly refer it.

Answer 2

Answer:

Hey mate here's your answer...

• cos 60 + sin 30 + sin 68 + cos 30= 1/2 1/2 + root 3 / 2 root 3/2 = 1/4 + 3/4= 1
• The answer is 1.

Hope this helps you...

Plz mark as brainliest...

Yours sincerely

ĴΔŁΔ¥

• ĴΔŁΔ¥✌(⊙.⊙)✌