Question

pls help it's exam time going on ​

Answer 1

Answer:

(4Sin60+Cos60/Sin30)(4Cos30-2Sin30)

[4(✓3/2)+(1/2)/(1/2)][4(✓3/2)-2(1/2)]

(2✓3 + 1)(2✓3 - 1)

4×3-1

12-1

11

Answer 2

Answer:

11

Step-by-step explanation:

since,

• sin 60* =
• $\sqrt{3 \2}$
• sin 30* =
• $1 \2$
• cos 60* =
• $1 \2$
• cos 30*=
• $\sqrt{3 \2}$
• Then,
• $(4 sin60 + cos60 \sin30 ) (4 cos \: 30 - 2sin30)$
• substitute the required values
• $(4 (\sqrt3 \2) + 1 \2 \1 \2)(4( \sqrt3 \2) - 2(1 \2)$
• $((2 \sqrt{3} ) + 1)((2 \sqrt{3)} - 1$
• $( 2 \sqrt{3} ) ^{2} - 1$
• 12 -1 = 11