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Grade 10 (PHINMA)
Math 10 (PHINMA)
Quarter 1 (MATH)
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Cards (2)
a
n
=
a_n=
a
n
=
a
1
(
n
−
1
)
(
d
)
a_1(n-1)(d)
a
1
(
n
−
1
)
(
d
)
Arithmetic
Formula
(
−
1
n
)
2
n
−
1
(-1^n)\over2_n-1
2
n
−
1
(
−
1
n
)
a_n
