Zadanie 1a
Find, in terms of r, (i) the arc length UV; (ii) hence the perimeter of the insert.
- Materiał graficzny
Zadania wzorowane na pytaniach z tego arkusza: te same umiejętności, format i punktacja, inne dane i kontekst. Treści arkusza IB nie publikujemy.
W bazie 29 zadań z tego arkusza, razem 80 punktów, każde z kluczem i schematem punktowania.
Find, in terms of r, (i) the arc length UV; (ii) hence the perimeter of the insert.
The insert has perimeter 20 cm. Find r.
The insert has perimeter 20 cm. Hence find the insert’s area.
Write f(x) in the form (x + p)2 + q, with integers p,q.
State the vertex coordinates of y=f(x).
Hence find the minimum of .
Show that b = 1/3.
Find the area bounded by y=f(x), the axes and x=3π.
Show that (f∘g)(x) = e2x − 10ex + 24.
Hence solve (f∘g)(x) = 24.
Show that L6 = ln a and determine the positive integer a.
Hence state L98.
Find g′(x).
Find the acute angle between the tangent at x=−3 and the x-axis.
Find (i) the y-intercept; (ii) the x-intercept.
Find every asymptote.
Sketch the graph, showing the features found in 7a and 7b.
Find f⁻¹(x) and state its domain.
Hence solve f(x)=f⁻¹(x).
In the tree, p and q are the flagged and clear probabilities conditional on station B. State p and q.
Show that a trial produces a flagged record with probability 1/5.
Given that the record is flagged, find the probability that station A was selected.
A daily simulation has three independent trials. A flagged record earns 7 audit credits and a clear record earns 2. Let X be the day’s total credits. Its possible values are 6,11,16,21. The probabilities for 6 and 16 are respectively 64/125 and 12/125. Find…
A daily simulation has three independent trials. A flagged record earns 7 audit credits and a clear record earns 2. Let X be the day’s total credits. Its possible values are 6,11,16,21. The probabilities for 6 and 16 are respectively 64/125 and 12/125.…
A daily simulation has three independent trials. A flagged record earns 7 audit credits and a clear record earns 2. Let X be the day’s total credits. Its possible values are 6,11,16,21. The probabilities for 6 and 16 are respectively 64/125 and 12/125. After n…
Find the opening’s area when θ=π/6.
Find its area A(θ) in the form , with positive integers a,b.
(i) Find A′(θ). (ii) Hence find the maximum opening area.
As θ approaches π/2, (i) describe the limiting shape; (ii) find the limiting area.
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