Question

trig stuff

Answer 1

which tri identities would you suggest to simplify this function:
\[\sin(4t+5)\]

Answer 2

@amistre64

Answer 3

trig*

Answer 4

factor out the 4 to get 4(t+5/4), then let u = t + 5/4

Answer 5

sin(4u)

Answer 6

wait, how is that using any trig identities?

Answer 7

its not a trig identity, its just a u substitution ....

Answer 8

i wouldnt suggest any identities to simplify a plain old sin function

Answer 9

but the question asks to use them.

Answer 10

then use the sin(a+b) if need be from the other question

Answer 11

sin(a+b) = sin(a)cos(b) + sin(b)cos(a0

Answer 12

ok thanks!

Answer 13

yep