If r1- r 2- r 3- s - - a - b - c are the standard notations then which of the following is correct- A- r 2- s - bB- r 3- s - cC- r1-s-aD- All of the above

The correct option is D All of the above We have seen that r_1 = /s a r_2 = /s b and r_3 = /s c. ...

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Question

If $r_{1}, r_{2}, r_{3}, s, △, a, b, c$ are the standard notations then which of the following is correct?

r_{1} = \frac{△}{s - a}

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r_{2} = \frac{△}{s - b}

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r_{3} = \frac{△}{s - c}

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All of the above

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