Por favor la 1 , 2 , 5, 6 y 14?

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<img src="https://tex.z-dn.net/?f=6%29...................%28%20%5Csqrt%5B15%5D%7Bx%5E%7B6%7D%7D%2A%20%5Csqrt%5B15%5D%7Bx%7D%20%29%5E%7B45%7D%0A%0A......................%20%5Csqrt%5B15%5D%7Bx%5E%7B6%7Dx%7D%5E%7B45%7D%20%0A%0A......................%28x%5E%7B6%7Dx%29%5E%7B3%7D%0A%0A......................%28x%5E%7B7%7D%29%5E%7B3%7D%20%0A%0A......................%20x%5E%7B21%7D%0A%0A14%29...................%3D%20%5Cfrac%7B9%7D%7B20%7D%20%20%20%20%20%20" />.