Differentiate w.r.t. Φ
1.65
Evaluate
\frac{33\Phi }{20}
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1.65\Phi ^{1-1}
The derivative of ax^{n} is nax^{n-1}.
1.65\Phi ^{0}
Subtract 1 from 1.
1.65\times 1
For any term t except 0, t^{0}=1.
1.65
For any term t, t\times 1=t and 1t=t.
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