Trig Subs 2

Question 1

sec^2(x)=

Answer 1

tan^2(x)+1

Question 2

(sec(x))’=

Answer 2

tanxsecx

Question 3

Ssec^2(x)=

Answer 3

tan(x)

Question 4

cos^2(x) (half angle)

Answer 4

1+cos(2x)/

2

Question 5

sin^2(x) (half angle)

Answer 5

1-cos(2x)/

2

Question 6

sqrt(a^2-x^2)

Answer 6

x=asinØ

Question 7

sqrt(a^2+x^2)

Answer 7

x=atanØ

Question 8

sqrt(x^2-a^2)

Answer 8

x=asecØ