Question

need basic algebraic formulas, any will do, any that are important to know

Answer 1

Sin^2x+Cos^2x = 1

Answer 2

wow, integral, you answer everything the fastest dont you? :D thanks

Answer 3

also
lne=1
lna^x=xlna

Answer 4

ax^2+bx+c=0 has solutions:
x1 = (-b-sqrt(b^2-4ac))/(2a)
x2 = (-b+sqrt(b^2-4ac))/(2a)

Answer 5

a^2+b^2=c^2 by the way (might be geometry)

Answer 6

\[a ^{3}+b^{3}=(a+b)(a ^{2}-ab+b ^{2})\]

Answer 7

if lnx=y >>e^y=x

Answer 8

(a+b)^2 = a^2+2ab+b^2

Answer 9

Binomial Theorem

Answer 10

what is the binomial theorem

Answer 11

Wikipedia it!

Answer 12

ok

Answer 13

The most important Algebraic theorem

Answer 14

Sum of geometric series, that is converging ofcourse:(a/1-r) where a is the first member of the series and r is the common ratio.

Answer 15

Binomial Theorem

Answer 16

geometric , harmonic, arithmetic Progression formulas

Answer 17

Also bionomial series: (1+x)^n : 1+ nx+[n(n-1)x^2]/2!+[n(n-1)(n-1)x^2]/3!

Answer 18

x^3-y^3=(x+y)(x^2+xy+y^2)
x^3+y^3=(x-y)(x^2-xy+y^2)

Answer 19

E=mc2