Answer:
1
Step-by-step explanation:
Using the trigonometric identities
tan(90 - x) = cotx , cotx = 
Given
tan1tan2tan3....................... tan87tan88tan89
= tan1tan2tan3............... tan(90-3)tan(90-2)(tan90 - 1)
= tan1tan2tan3.............. cot3cot2cot1
= tan1cot1tan2cot2tan3cot3 ........................
= 1 × 1 × 1 ×....................... × 1
= 1
Answer: 54
Step-by-step explanation:
It’s BD because it need to be the opposite ray and this one is the opposite ray so yes this is it
Answer:
C. 2/3
Step-by-step explanation:
4/6 is equivalent to 2/3 (divide by 2)