Latest Gujarat

Update Of https://ojas.gujarat.gov.in/, FREEJOBALERT, GPSC, GSSSB,GPSSB

Useful maths formula for competitive exam

Useful maths formula for competitive exam

Algebra:

Laws of Indices:

(i) am ��������� an = am + n
(ii) am/an
(iii) (am)n = amn
(iv) a0 = 1 (a ≠ 0).
(v) a- n = 1/an
(vi) n√am = am/n
(vii) (ab)m = am ��������� bn.
(viii) (a/b) m = am/bn
(ix) If am = bm (m ≠ 0), then a = b.
(x) If am = an then m = n.

Arithmetical Progression (A.P.):

(i) The general form of an A. P. is a, a + d, a + 2d, a+3d,…..
where a is the first term and d, the common difference of the A.P.
(ii) The nth term of the above A.P. is tn = a + (n – 1)d.
(iii) The sum of first n terns of the above A.P. is s = n/2 (a + l) = (No. of terms/2)[1st term + last term] or, S = n/2 [2a + (n – 1) d]
(iv) The arithmetic mean between two given numbers a and b is (a + b)/2.
(v) 1 + 2 + 3 + …… + n = [n(n + 1)]/2.
(vi) 12 + 22 + 32 +……………. + n2 = [n(n+ 1)(2n+ 1)]/6.
(vii) 13 + 23 + 33 + . . . . + n3 = [{n(n + 1)}/2 ]2.
Like this get many formulas of maths and score in the competitive exam with kachhua…

Kachhua can help you to prepare well in competitive exam by providing online material , video lectures and regular online tests(provided with Auto result and Daily solution)…
click the below link for preparation of Mathematics with kachhua..
Advance Maths : Click here
Maths (Only Daily Test) :Click here
Click the below link For other competitive exams like TALATI, GPSC, IBPS, CCC, UPSC, HTAT, TET, TAT etc. : Click here
Updated: 06/11/2015 — 10:16 am

Leave a Reply

Your email address will not be published. Required fields are marked *

Latest Gujarat © 2017 Frontier Theme
sirinevler escort istanbul escort halkali escort istanbul escort
porno izle