(x/y)5a−3=(y/x)17−3a(x/y)^{5a-3}=(y/x)^{17-3a}(x/y)5a−3=(y/x)17−3afind a A8B-8C-7D7Answer: C. -7 Read Explanation: (x/y)5a−3=(y/x)17−3a(x/y)^{5a-3}=(y/x)^{17-3a}(x/y)5a−3=(y/x)17−3a(x/y)5a−3=(x/y)3a−17(x/y)^{5a-3}=(x/y)^{3a-17}(x/y)5a−3=(x/y)3a−175a−3=3a−175a-3=3a-175a−3=3a−175a−3a=−17+35a-3a=-17+35a−3a=−17+32a=−142a=-142a=−14a=−14/2=−7a=-14/2 = -7a=−14/2=−7 Read more in App