Exam 2 (trig identities)

Question 1

d/dx

Answer 1

df/dx

Question 2

d/dx sin(x)

Answer 2

cos(x)

Question 3

d/dx cos(x)

Answer 3

-sin(x)

Question 4

d/dx tan(x)

Answer 4

sec2x

Question 5

d/dx sec(x)

Answer 5

secxtanx

Question 6

d/dx cscx

Answer 6

-cscxcotx

Question 7

d/dx cotx

Answer 7

-csc2x

Question 8

d/dx lnx

Answer 8

1/x

Question 9

d/dx ln(f(x))

Answer 9

f’x/fx

Question 10

d/dx arcsinx

Answer 10

1/sqr rt 1-x2

Question 11

d/dx arcsin(f(x))

Answer 11

f’x/ sqr rt 1-fx2

Question 12

d/dx arctanx

Answer 12

1/1+x2

Question 13

d/dx arctanfx

Answer 13

f’x/1+fx2