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∣ 5 2 1 1 2 5 34 1 34 ∣ = 520 \left \lvert \begin {array} {ccc} 5 & 2 & 1 \\ 1 & 2 & 5 \\ 34 & 1 & 34 \end {array} \right \rvert = 520 ∣∣∣∣∣∣51342211534∣∣∣∣∣∣=520
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r = a ( 1 − c o n θ ) r=a(1-con\theta) r=a(1−conθ)
∣ 5 2 1 1 2 5 34 1 34 ∣ = 520 \left \lvert \begin {array} {ccc} 5 & 2 & 1 \\ 1 & 2 & 5 \\ 34 & 1 & 34 \end {array} \right \rvert = 520 ∣∣∣∣∣∣51342211534∣∣∣∣∣∣=520
r
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a
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o
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r=a(1-con\theta)
r=a(1−conθ)