Question

simplifying trig functions

Answer 1

???

Answer 2

you could study simplifing trig functions for 20 years and not be done:) be more spacific

Answer 3

f(x) = cos (x/2) f(3pi/2)=

Answer 4

they say its sqrt2/2 but i dont know how they get that

Answer 5

rate of change is what i need it for

Answer 6

well cos((3pi/2/2) = cos(3pi/4) = -sqrt(2)/2 from the unit circle...they are wrong:)

Answer 7

note 1/sqrt(2) = sqrt(2)/2

Answer 8

1/sqrt(a) = sqrt(a)/a more general

Answer 9

thanks

Answer 10

\[f(3\pi/2)=\cos (3\pi/2)\]
\[f(3\pi/2)=\cos (\pi+\pi/2)\]
\[f(3\pi/2)=-\cos (\pi/2)\]
\[f(3\pi/2)=-1/\sqrt{2}\]