Question

find sin^3 60*cot 30-2 sec^2 45+3 cos 60*tan40-tan^2 60......plz answer fast​

Answer 1

Answer:

the answer is -5/2

Step-by-step explanation:

Answer 2

Step-by-step explanation:

(√3/2)^3.(√3)-2(√2)^2+3(1/2).(√3)^2

3√3/8.√3-2(2)+3(1/2).3

3√3/8.√3-4+3/2.3

3√3/8.√3-4+3/2.3

3√3×√3/8-4+9/2

3×3/8-4+9/2

9/8-8+9/2

9-32+36/8

=13/8