Question

9 cos2 60 degree + root 2 sin 45 degree - cot2 30 degree ​

Answer 1

Answer:

9 cos2 60 degree + root 2 sin 45 degree - cot2 30 degree

= 4.0773

Step-by-step explanation:

9 cos2 60 degree + root 2 sin 45 degree - cot2 30 degree

= 9 cos 120° +

$\sqrt{2}$

sin 45° - cot 60°

= - 9/2 + √2 ( 1/ √2 ) - 1/ √3

= -9/2 + 1 - 1/ √3

= ( - 7/2 ) - ( 1/ √3 )

= (- 3.5 ) - 0.5773

= 4.0773

Answer 2

Answer:

☺✊✊‍♂️‍♂️

Step-by-step explanation:

thanks 4 free points