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Published by nad zira, 2020-11-05 08:23:50

SENARAI RUMUS MATEMATIK TAMBAHAN KSSM

SENARAI RUMUS MATEMATIK TAMBAHAN KSSM

SENARAI RUMUS

1 x b  b2  4ac 15 cosec2 A = 1 + cot2 A
2a kosek2 A = 1 + kot2 A

2 loga b = logc b 16 sin A  B  sin A cos B  cos A sin B
logc a sin A  B  sin A kos B  kos A sin B

3 Tn = a + (n – 1)d 17 cos A  B  cos A cos B  sin A sin B
4 Tn = arn – 1 kos A  B  kos A kos B  sin A sin B

5 Sn = n 2a  n  1 d  18 tan A  B  tan A  tan B
2 1 tan A tan B

   6 19 sin 2A = 2 sin A cos A
Sn = a rn 1  a 1 rn , r 1 sin 2A = 2 sin A kos A
r 1 1 r

7 Z  X  20 cos 2A = cos2 A – sin2 A
 = 2 cos2 A – 1
= 1 – 2 sin2 A

8 PX  r = nCr pr qn – r , p + q = 1 kos 2A = kos2 A – sin2 A
= 2 kos2 A – 1
9 n Pr  n! = 1 – 2 sin2 A

n  r! 2 tan A
 tan2
21 tan 2A  1 A

10 nCr  n!

n  r!r ! a b c
sin A sin B sin C
22  

11 I = Q1  100
Q0
23 a2 = b2 + c2 – 2bc cos A
Wi Ii a2 = b2 + c2 – 2bc kos A
Wi
12 I  24 Area of triangle / Luas segi tiga

13 sin2 A + cos2 A = 1 = 1 ab sin C
sin2 A + kos2 A = 1 2

14 sec2 A = 1 + tan2 A
sek2 A = 1 + tan2 A


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