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Square both sides:


Since

is positive, you can discard the negative sign. So,

Substitute this value back into

to find


I hope this helps. =)
Tags: <em>trigonometric identity relation trig sine cosine tangent sin cos tan trigonometry precalculus</em>
Answer:
<em>122.46 cm² </em>
Step-by-step explanation:
A =
~~~~~~~~~
= 8 cm
= 5 cm
A = 3.14 ( 8² - 5² ) ≈ <em>122.46 cm²</em>
Answer:
−
4x−2
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
7 times 2 = 14 14 times 3 equals 42 ur welcome
Answer:
d
Step-by-step explanation: