7
![\sqrt[7]{5\sqrt[]({21 {}^{7} )} } {}^{5} \div \sqrt[5]{3( {7}^{5}) {}^{3} }](https://tex.z-dn.net/?f=+%5Csqrt%5B7%5D%7B5%5Csqrt%5B%5D%28%7B21+%7B%7D%5E%7B7%7D+%29%7D+%7D+%7B%7D%5E%7B5%7D+%5Cdiv+%5Csqrt%5B5%5D%7B3%28+%7B7%7D%5E%7B5%7D%29+%7B%7D%5E%7B3%7D+%7D+ "\sqrt[7]{5\sqrt[]({21 {}^{7} )} } {}^{5} \div \sqrt[5]{3( {7}^{5}) {}^{3} }")
simplify
options are :
A.3, B.5 , C.7, D.9
Answers
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7✔️5✔️(21^7)^5 ➗ 5✔️3✔️(7^5)^3
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