Matemātikas formulas
Fizikas formulas
Meklet
Aprēķini
MWPSFN - 1
Aprēķins: MWPSFN - 1
S
_
n
=
(
2
*
a
_
1
+
d
*
(
n
-
1
)
)
*
n
/
2
S
_
n
=
(
2
*
a
_
1
+
d
*
(
n
-
1
)
)
*
n
/
2
$$S_{n}$$
=
$$\frac{(2\cdot a_{1}+d\cdot (n-1))\cdot n}{2}$$
S
_
n
=
a
_
1
*
n
+
n
^
2
*
d
/
2
-
d
*
n
/
2
$$S_{n}$$
=
$$a_{1}\cdot n+\frac{n^{2}\cdot d}{2}-\frac{d\cdot n}{2}$$
S
_
n
=
a
_
1
*
n
+
0.5
*
d
*
n
^
2
-
0.5
*
d
*
n
$$S_{n}$$
=
$$a_{1}\cdot n+0.5\cdot d\cdot n^{2}-0.5\cdot d\cdot n$$