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Q100: <span class="ql-formula" data-value="r ( t ) =
Q130: The shape and density of a
Q172: <span class="ql-formula" data-value="\mathbf { F } =
Q221: <span class="ql-formula" data-value="\lim _ { x \rightarrow
Q251: <span class="ql-formula" data-value="\mathbf { F } =
Q265: <span class="ql-formula" data-value="S"><span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>S</mi></mrow><annotation encoding="application/x-tex">S</annotation></semantics></math></span><span
Q269: Show that the value of the
Q302: <span class="ql-formula" data-value="\lim _ { x \rightarrow
Q462: As the zoom lens in a
Q470: <span class="ql-formula" data-value="f ( u ) =