Could I get a hand with this, please?
1 answer:
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tan 39 = x /30
0.809 = x/30
x = 24.29
x = 24.3
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.