Question

cot ^30 - 2 cos ^2 45 -3/4 sec ^2 45 - 4 sec^2
who give me correct answer I will give you brainlisht​

Answer 1

Step-by-step explanation:

The dimensions of room is 12×8×4

The Lateral surface area is

2h(l+b)

2(4)(12+8)

8×20=160m

2

Cost of white wash is 5m

2

Total cost is 5×160=800Rs,