Question

trig

Answer 1

as a close approximation, when an angle 'theta' (in rads) is very small, we may...

Answer 2

a) replace cos theta by zero
b) replace sin theta by unity
c) replace cos theta by theta
d) replace sin theta by theta
e) none of the above

Answer 3

unity=1??

Answer 4

d
at small angles sine theta / theta = 1

Answer 5

...at small angles?. no. wait.yes that works. my bad.

Answer 6

jimmy- you're saying sin theta divide by theta??

Answer 7

yes = 1 in other words:
at small rads you can replace sine theta by theta

Answer 8

ok just got it thx

Answer 9

yw