AS A Level 9231 9709 Mathematics MF19 2020
List MF19
List of formulae and statistical tables
Cambridge International AS & A Level
Mathematics (9709) and Further Mathematics (9231)
For use from 2020 in all papers for the above syllabuses.
CST319
*2508709701*
PURE MATHEMATICS
Mensuration
Volume of sphere =
4
3
¦Ðr 3
Surface area of sphere = 4¦Ðr 2
Volume of cone or pyramid = 13 ¡Á base area ¡Á height
Area of curved surface of cone = ¦Ðr ¡Á slant height
Arc length of circle = r¦È
( ¦È in radians)
Area of sector of circle = 12 r 2¦È
( ¦È in radians)
Algebra
For the quadratic equation ax 2 + bx + c = 0 :
x=
?b ¡À b 2 ? 4ac
2a
For an arithmetic series:
un = a + (n ? 1)d ,
S n = 12 n( a + l ) = 12 n{2a + (n ? 1) d }
For a geometric series:
un = ar n ?1 ,
Sn =
a(1 ? r n )
1? r
(r ¡Ù 1) ,
S¡Þ =
a
1? r
(
r a)
(
x < a)
FURTHER PURE MATHEMATICS
Algebra
Summations:
n
¡Æ
r =1
n
¡Æ
r = 12 n(n + 1) ,
r =1
n
¡Ær
r 2 = 16 n(n + 1)(2n + 1) ,
3
r =1
= 14 n 2 (n + 1) 2
Maclaurin¡¯s series:
f( x) = f(0) + x f ¡ä(0) +
x2
xr
f ¡ä¡ä(0) + K + f ( r ) (0) + K
r!
2!
e x = exp( x) = 1 + x +
(all x)
x 2 x3
xr
+ ? K + (?1) r +1 + K
2
3
r
(¨C1 < x ? 1)
x3 x5
x 2 r +1
+ ? K + (?1) r
+K
3! 5!
(2r + 1)!
(all x)
x2 x4
x2r
+
? K + (?1) r
+K
2! 4!
(2r )!
(all x)
ln(1 + x) = x ?
sin x = x ?
x2
xr
+K + +K
r!
2!
cos x = 1 ?
tan ?1 x = x ?
x3 x5
x 2 r +1
+ ? K + (?1) r
+K
3
5
2r + 1
sinh x = x +
(¨C1 ? x ? 1)
x3 x5
x 2 r +1
+ +K +
+K
3! 5!
(2r + 1)!
(all x)
x2 x4
x2r
+
+K+
+K
2! 4!
(2r )!
(all x)
cosh x = 1 +
tanh ?1 x = x +
x3 x5
x 2 r +1
+ +K +
+K
3
5
2r + 1
(¨C1 < x < 1)
Trigonometry
If t = tan 12 x then:
sin x =
Hyperbolic functions
cosh 2 x ? sinh 2 x ¡Ô 1 ,
2t
1+ t2
cos x =
and
1? t2
1+ t2
cosh 2 x ¡Ô cosh 2 x + sinh 2 x
sinh 2 x ¡Ô 2sinh x cosh x ,
sinh ?1 x = ln( x + x 2 + 1)
cosh ?1 x = ln( x + x 2 ? 1)
?1+ x ?
tanh ?1 x = 12 ln ?
?
?1? x ?
5
(x ? 1)
(| x | < 1)
................
................
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