Question

Find 4(sin4 60+cos4 30)-3( tan2 60-tan2 45)+5 cos2 45

Answer 1

Step-by-step explanation:

=> 4 {(root of 3/2)^4+(root of 3/2)^4}-3 {( root of 3)^2-1}+5 (1/ root of 2)^×

=> 4(9/16+9/16)-3 (3-1)+5 (1/2)

=> 4 (18/16)-3 (2)+5/2

=> 18/4-6+5/2

=> 18-24+10/4

=> -6+10/4

=> 4/4

=> 1

Thank you =)