The last one isn’t
there can’t be more than 1 of the same x value
Answer:
Option A.
Step-by-step explanation:
It is given secθ = - 
then cosθ = -
Now we know the identity
sinθ = 
= 
= 
Now sin2θ = 2sinθcosθ
Now we put the values of cosine and sine in the formula
sin2θ = 2×(-
)(
)
= -
Therefore, option A. is the answer.
Answer:
d=18.
Step-by-step explanation:
subtract eight from twenty six and there's your answer