Answer:
Don't worry Its a
Step-by-step explanation:
Sec is 1/cos so sec -120 is 1/cos -120 which is -2
Answer:
1/3
Step-by-step explanation:
x-1/3 x=2/3
2/3-1/3 (same denominator)
=1/3
Answer:
dosent this question
on have a diagram or some thing
Answer:
15
Step-by-step explanation:
a²+20²=25²
a²=625-400
a²=225
a=15
