Question

TRIG HELP! FAN AND MEDAL. QUESTION IN COMMENTS!

Answer 1

Mathmale i need tons of help please! Im completely lost and I actually want help.

Answer 2

If y=sin bx, the period of the function is given by (2 pi)/b. Calculate that for your function.

Answer 3

so 2pi/4 so 1/2pi

Answer 4

sorry (1/2)pi?

Answer 5

and then, how do i know if something is periodic?

Answer 6

or if the equation is periodic sorry

Answer 7

Yes, 'tho there'd be less aambiguity if you'd please enclose that fraction, 1/2, inside parentheses: Period = (1/2) pi

Answer 8

oh okay. :) can you help with some more?

Answer 9

A periodic function repeats itself over the time interval that we call the "period."

For now, learn and memorize the fact that the sine and cosine functions are periodic with period 2pi. Same for the secant and cosecant functions.

The tangent and cotangent functions are also periodic, but their periods are pi, not 2pi.

Answer 10

ohhh okay, so here ill show you what i mean. I have a quetion but im not sure how to tell if it is periodic or not.

Answer 11

I see. The sine function (sin x) is definitely periodic. That " +15 " merely shifts the graph of y=sin x up by 15 units. y=sin x + 15 is also periodic; it repeats itself every 360 degrees or 2pi radians.

Answer 12

ohhh okay :)

Answer 13

i have like 10 more questions ha. can you help?

Answer 14

Perhaps, if you'd be willing to spread them over a day. Right now I need a nap.
But go ahead and post your next question (separately from this one).

Answer 15

okay :)

Answer 16

ive answered a few of them :)