Question

please solve my question as fast as possible​

Answer 1

Answer:

0

Step-by-step explanation:

tan(A-B) = 1/√3

tan30 = 1/√3

so compare both

=>A-B = 30 ..... @1

Sin(A + B) = √3/2

Sin60 = √3/2

compare both

=> A+B = 60 ......@2

from equation @1 and @2

after evaluating A = 45 and B=15

put this values in

Sin²(A+B) - Cos²(A-B)

= Sin²(45+15) - Cos²(45-15)

= Sin²(60) - Cos²(30)

= 3/4 - 3/4

= 0

Answer 2

HAPPY BIRTHDAY 2 U ❤️

have a great career