If y^2=xz
Then find
x^2+z^2-y^2/x^-2-y^-2+z^-2
If anyone will do this I will mark him brainliest
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If y^2=xz
Then find
x^2+z^2-y^2/x^-2-y^-2+z^-2
If anyone will do this I will mark him brainliest
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Lines
Slope of line through (xi,j/i) and (*2,2/2):
2/2 - 2/1
to =-
*2 — *1
Point-slope equation of line through (£1,2/1) with slope to:
2/ - 2/1 = m(£ - £ 1 )
Slope-intercept equation of line with slope m and //-intercept b:
y = b + mx
Distance from (*1,2/1) to (*2,2/2):
Distance = 1/(x 2 - *i) 2 + (2/2 - 2/1) 2
Midpoint of a line segment whose ends are at (*1,2/1) and (*2,2/2):
Midpoint =('
Definition of Zero, Negative, and Fractional Exponents
a 0 = 1, a 1 = —, and, in general, a x = —
a a x
1.
2.
3.
a 1 / 2 = \[a 1 a 1//3 = \fa, and, in general, a}^ n = \fa
Also, a m/n = = ( $a) m
Rules of Exponents
For example, 2 4 • 2 3 = (2 • 2 • 2 • 2) • (2 • 2 • 2) = 2 7
^ , 2 4 2 • 2 • 2 • 2 ,
For example, — = -= 2
F 2 3 2 - 2-2
{a x Y = a xt For example, (2 3 ) 2 = 2 3 • 2 3 = 2 6
Definition of Log
y = In* means e v = *; for example: In 1 = 0, since e° = 1
y = log* means 1Q V = *; for example: log 10 = 1, since 10 1 = 10
Rules of Logarithms
log (AB) = log A + log B
log = log A — log B
log A p = p log A
log 10" = x
I0 l °s x = x
In
ln(AB) = InA + lnB
A'
B /
In A p = p In A
= In A — In f?
Identities
In e x = x
_ In x
= X
= X