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    Could someone explain why in f) the quotient rule isn't used?

    Also in part i) how the product rule works here? I changed root xy to x^1/2y^1/2 but came up wrong.

    Thanks in advance guys!!
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    (Original post by AJA1994)
    Could someone explain why in f) the quotient rule isn't used?

    Also in part i) how the product rule works here? I changed root xy to x^1/2y^1/2 but came up wrong.

    Thanks in advance guys!!
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    Apologies once again my photos from my phone always rotate..
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    You use product rule in part i as it is a product.  \sqrt{xy}=\sqrt x\times \sqrt y .
    For part f you could use product rule or quotient rule.
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    (Original post by B_9710)
    You use product rule in part i as it is a product.  \sqrt{xy}=\sqrt x\times \sqrt y .
    For part f you could use product rule or quotient rule.
    I used the product rule for i) and went completely wrong. But I don't quite know where. I said u= x^1/2, V=y^1/2, so u'= 1/2x^-1/2 and v'= 1/2y^-1/2(dy/dx) is that right??
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    (Original post by AJA1994)
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    Need to cut them nails bruh
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    (Original post by Glavien)
    How can I get from the first line to the second?Name:  ImageUploadedByStudent Room1484159961.421186.jpg
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    Posted from TSR Mobile
    Stop hijacking someone elses thread & make your own
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    (Original post by AJA1994)
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    This is going to be my standard response to wonky photos.
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