Functions

Question 1

What are Polynominals?

Answer 1

aNx^N +an-1x^n-1

Question 2

What is the domain of a polynomial?

Answer 2

All real numbers

Question 3

What is a rational? and what is the domain?

Answer 3

f(x) = p(x)/ q(x)
All real numbers where Q(x) does not equal 0

Question 4

What are the transcendental functions?

Answer 4

Exponentials, Logs, and Trig

Question 5

How can make new functions?

Answer 5

Through adding
f(x) +/- g(x) = (f+g)(x), f(x)/g(x)= (f/g)(x) or f(x)(gx)= (f(g))(x)

Question 6

What is sin theta at 0, n/6, n/4, n/3, n/2

Answer 6

0,1/2, root 2/2, root 3/2, 1

Question 7

What is cos theta at 0, n/6, n/4, n/3, n/2

Answer 7

1, root 3/ 2, root 2/2, 1/2, 0

Question 8

What is tan theta at 0, n/6, n/4, n/3, n/2

Answer 8

0, 1/ root 3, 1, root 3, DNE

Question 9

What does sin^2+cos^2=

Answer 9

1

Question 10

what does tan^2+1=

Answer 10

sec^2x

Question 11

What does sin(2x)=

Answer 11

2sinxcox

Question 12

What does {1-cos2x}/2 =

Answer 12

sin^2x

Question 13

What does sin(x+y) =

Answer 13

sinxcosy+cosxsiny

Question 14

What does cos (2x) =

Answer 14

cos^2x-sin^2x

Question 14

What does cos(x+y)=

Answer 14

cosxcosy-sinxsiny

Question 15

What does cos^2x=

Answer 15

(1+cos2x)/2