Question

3 cos 60 degree +2 cot square 30 Degree -5 sin Square 45 degree=?

Answer 1

Answer:

5

Step-by-step explanation:

3cos 60°+2cot²30°-5sin²45

=>3(1/2)+2(3)-5(1/2)

=>6-1

=>5

required information :

cos 60°=1/2

cot 30°= √3

sin 45° = 1/√2