The roots of the equation 9x2 – Rx + 81 = 0 will be equal, if values of R are समीकरण 9x2 – Rx + 81 = 0 के मूल समान होंगे यदि R के मान हैं:

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The roots of the equation 9x<sup>2 </sup>– Rx + 81 = 0 will be equal, if values of R are समीकरण 9x<sup>2 </sup>– Rx + 81 = 0 के मूल समान होंगे यदि R के मान हैं: