Answer:
b . _3,2,7,12
Step-by-step explanation:
Given sequence:
.
We need to find first four terms of the sequence.
We already given first term -3.
Let us find second term .
Plugging n=2.
Now taking n=3.
Now, n=4.
We got terms -3, 2, 7 and 12.
abcdefghijklmnopqrswxyz
x ≈ 11.7
Using the cosine ratio in the right triangle
cos26° = = ( multiply both sides by 13 )
13 × cos26° = x , then
x ≈ 11.7 ( to the nearest tenth )
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