Question

sin² 45 degree + cos²45 degree - tan²60 degree​

Answer 1

Answer:

1-tan²60 degree

1-1.713

0.713

Answer 2

Answer:

sin² 45 degree + cos²45 degree - tan²60 degree

(1/√2)²+(1/√2)²-(√3)²

1/2+1/2-3

1+1-6/2

-4/2

-2