--2, -12, 4, 24, -8, -48, 16, n what's n?
2 answers:
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Remember
difference of 2 perfect squares
a^2-b^2=(a-b)(a+b)
and the undistributiv propeoryt
ab-ac=a(b-c)
so we have
undistribute and factor
cancel out the one ( (u-2)/(u-2)=1)
is result
difference of 2 perfect squares
a^2-b^2=(a-b)(a+b)
and the undistributiv propeoryt
ab-ac=a(b-c)
so we have
undistribute and factor
cancel out the one ( (u-2)/(u-2)=1)
Answer: C
Step by step:
- Use the pythagoras' theorem ( c² = a² + b² ) to find the length of AB.
- Use trigonometry to find the 2 missing angles of the triangle.
That's all!
