Important Formulas Flashcards

0
Q

what is the formula that goes with .866?

A

square root of 3/ 2

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1
Q

what is the trigonometric functions that relate to (x,y)?

A

(cos,sin)

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2
Q

what fraction goes with .577?

A

square root of 3/ 3

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3
Q

what fraction goes with .707?

A

square root of 2/2

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4
Q

what is the fraction that goes with 1.73?

A

square root of 3

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5
Q

what is tan theta also equal to?

A

sin/cos

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6
Q

deg>radians formula?

A

pie/180

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7
Q

rad>degrees formula?

A

180/pie

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8
Q

what does the theta stand for in theta = s/r?

A

central angle (radians)

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9
Q

what does s equal in theta =s/r?

A

intercepted arc

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10
Q

what does r = in the formula theta =s/r

A

radius

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11
Q

where is theta in the bow tie angles diagram

A

always at the origin

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12
Q

sin^2 theta + cos^2theta =?

A

1

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13
Q

cos^2 theta equals?

A

1-sin^2 theta

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14
Q

sin^2 theta equals?

A

1-cos^2theta

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15
Q

tan^2 theta +1 equals?

A

sec^2theta

16
Q

cot^2 theta + 1 equals?

A

csc^2 theta

17
Q

y=asinx or y=acosx what does |a| =?

A

amplitude

18
Q

y=asinbx what does b=?

A

frequency

19
Q

y=asinbx what is the period formula?

A

2pie/b

20
Q

arithmetic formula?

A

a sub n =asub 1 +(n-1) a

21
Q

what is the geometric formula?

A

asub n =asub1 r^n-1

22
Q

when you have a fractional exponent what is the formula

A

exponent / index

23
Q

what is the formula of a circle?

A

(x-h)^2 + (y-k) ^2 =r^2

24
Q

if the denominator is a binomial what do you multiply it by?

A

the conjugate

25
Q

if the denominator is monomial what do you multiply it by?

A

itself

26
Q

what does log(AB) transfer to?

A

logA + logB

27
Q

what does log(A/B) change to?

A

logA-logB

28
Q

what does log(A^B) change to?

A

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