Maths

Transposition

100

T = Q / I  

Find I?

I = Q / T

200

P = V x I

Find V?

V = P / I

300

I = V / R

Find R?

R = V / I

400

T = C x R

Find R? 

R = T / C

500

C² = A^{2 +} B²

Find B?

B=√( C^{2 -} A²)

Formula

100

What is pythagorus theorem?

c² = a² + b²

200

SOH = ?

Sine θ = Opposite / Hypotenuse

300

TOA = ?

Tan θ = Opposite / Adjacent

400

CAH = ?

Cosine θ = Adjacent / Hypotenuse

500

What does BEDMAS stand for?

Brackets, Exponents, Division, Multiplication, Addition, Subtraction.

Multiples

100

Nano = ?

Exponent = ?

Symbol = ?

Nano = 0.000000001 

Exponent = 10^-6

Symbol = M

200

Kilo = ?  

Exponent = ?

Symbol = ?

Kilo =  1,000

Exponent = 10^-3

Symbol = k

300

Centi = ? 

Exponent = ?

Symbol = ? 

Centi = 0.01

Exponent = 10^-2

Symbol = c

400

Micro = ?  

Exponent = ?

Symbol = ?

Micro =  0.000001

Exponent = 10^-6

Symbol = µ

500

Mega = ?

Exponent = ?

Symbol = ?

Mega = 1,000,000

Exponent = 10⁶

Symbol = M

Equations

100

Adjacent = 12m

Opposite = 16

Hypotenuse = ?

H =√(A² + O²)

   =√(12² + 16²)

   =√400

   = 20m

   

200

Adjacent = 184cm

Opposite = 266cm

Hypotenuse = ? (to 2 decimal places)

H =√(A² + O²)

   =√(184² + 266²)

   =√33,856 + 70,756

   = √104,612

   = 323.44cm

300

C² = A² + B²

C = 20cm

A = 12cm

B = ?

C² = A² + B²

B= √( C^{2 -} A²)

  = √( 20^{2 -} 12²)

  = √ 256

  = 16cm

400

(Angle) θ = 48

A = 8

O = ?

Tan θ = O / A

O = Tan (48) x 8 

   = 8.88

500

(Angle) θ = 35

H = 17.43

A = ?

Cos (35) = A / H

 A = Cos (35) x 17.43

 A = 14.28