√((y 2 /25) + (y 2 /16)) is equal to ?
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√((y 2 /25) + (y 2 /16))
= sqrt{ [ y2/25 + y^{2} /16 ] }
= √((16y 2 + 25y 2)/16*25)
= √((41y 2)/16*25)
= √41 * y/(4*5)
= √41 * y/20 Ans
= sqrt{ [ y2/25 + y^{2} /16 ] }
= √((16y 2 + 25y 2)/16*25)
= √((41y 2)/16*25)
= √41 * y/(4*5)
= √41 * y/20 Ans
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