Question

chose the correct option and justify your choice : 1 - tan? 45°
1 + tan? 450
(A) tan 90°
(B) 1
(C) sin 45°
(D).O​

Answer 1

Answer:

0 should be the answer.....

Answer 2

Answer:

0 zero

Step-by-step explanation:

(1-tan45)(1+tan45)

= (1-1)(1+1)

= (0)(1)

= 0