Flashcards in pure Deck (35)

Loading flashcards...

1

## sin2A=?

### 2sinAcosA

2

## cos2A=?

###
cos squaredA- sin squared A

2cos squared A-1

1-2sin squared A

3

## tan2A=?

### 2tanA/1-tan squared A

4

## what is acute?

### 0-90 degrees

5

## what trigs are positive when the angle is acute?

### sin cos and tan

6

## what is obtuse?

### 90-180 degrees

7

## what trigs are positive when the angle is obtuse?

### only sin

8

## what is reflex?

### 180 or more degrees

9

## what is the derivative of lnf(x)?

### f'(x)/f(x)

10

## what is the integral of sinx?

### -cosx

11

## what is the integral of sin(ax+b)?

### -1/a cos(ax+b)

12

## what is the integral of cos(x)?

### sinx

13

## what is the integral of cos(ax+b)?

### 1/a sin(ax+b)

14

## what is the integral of e^x?

### e^x

15

## what is the integral of e^ax+b?

### 1/a e^ax+b

16

## what is the integral of 1/x?

### ln x

17

## what is the integral of 1/ax+b?

### 1/a ln(ax+b)

18

## when integrating by substitution how do you choose which part to be u?

###
Logarithmic

Algebraic

Trigonometric

Exponential

19

## circle circumference=?

### 2πr

20

## arc length=?

### rθ

21

## arc area=?

### 1/2 r squared θ

22

## in small angle approximations, sinx=?

### x

23

## in small angle approximations, cosx=?

### 1-1/2 x squared

24

## in small angle approximations, tanx=?

### x

25

## what is an arithmetic sequence?

### when the difference between 1 term and the next is always the same

26

## what is a geometric sequence?

### when the ratio of 1 term to the next is always the same.

27

## what is a periodic sequence?

### it repeats itself at regular intervals

28

## what is a series?

### the sum of terms in a sequence.

29

## what is a deductive definition?

### gives a direct formula for the kth term of the sequence in terms of k.

30