Q23: Find a9 when <span class="ql-formula"
Q28: Find the inverse of the function
Q47: <span class="ql-formula" data-value="y=\sqrt{-x}"><span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>y</mi><mo>=</mo><msqrt><mrow><mo>−</mo><mi>x</mi></mrow></msqrt></mrow><annotation encoding="application/x-tex">y=\sqrt{-x}</annotation></semantics></math></span><span
Q71: <span class="ql-formula" data-value="\sum _ { n =
Q81: A theater has 40 rows with 29
Q93: <span class="ql-formula" data-value="\tan x = \frac {
Q98: Find the sum of the first 30
Q304: <span class="ql-formula" data-value="\sum _ { n =
Q390: <span class="ql-formula" data-value="\text { If } \sum
Q429: <span class="ql-formula" data-value="\sum _ { n =