Question

Rearrange 0=100(200π)cos(200πt+π/4) to make t the subject.

Answer 1

divide, arc, subtract, divide atain

Answer 2

*again

Answer 3

show me how to do please

Answer 4

i just did lol

Answer 5

\[0 = k~trig(pt+n)\]
\[0 =trig(pt+n)\]
\[arc(0) =pt+n\]
\[arc(0)-n =pt\]
\[\frac 1p(arc(0)-n) =t\]

Answer 6

at the end, "solve for t" is what you mean, right?

Answer 7

no, not solve for t, just algebra it into an equation for t

Answer 8

to be fair, arccos(0) = pi/2 but any odd multiple of pi/2 is sufficient

Answer 9

thank you @amistre64, big help. I was making a mistake when it came to the cos, not using arc!! thank you again.

Answer 10

your welcome

Answer 11

isolate t? right?@amistre64

Answer 12

yes

Answer 13

ok. Got it. thanks for explanation

Answer 14

yep