Question

1-tan? 45°
1+tan? 45°
(a) tan 90°
(b) 1 (0)
sin 45° (d) 0
00​

Answer 1

Answer:

Step-by-step explanation:

1+tan45=2  (tan 45=1)

so (1+tan45)(1+tan45)

1+tan^45+2tan 45=1+1+2=4

please mark me as brainliest