Power Reducing Formula
Have you used the power reduction formula to rewrite the expression?
6 sins 4x
Yes
(Sin 2x) (because 2x)
I do a lot of work on double angle, subtraction and half angle formulas. I'm crying here because there's not a single problem I can solve! Help :(
updateWhy do you change from 4 to 6? I got a little involved in the process.
Anyway, that's not the right answer (from the first book). Any other ideas?
It requires a little knowledge.
6 sin 4x = 6 (sin²x) (sin (x)
sin²x = (1 cos 2x) / 2, then alternate and multiply. You get a term other than sin²x, so use those formulas. It is done there.
Formula reduction formula
Sin 2x = (1kos 2x) / 2
6 sins 4x = (6/4) (1kos 2x) 2 = (3/2) (1 2kos 2x + kos; 2 (2x))
And enter the answer 2 (2x) = (1 + cos4x) / 2 in> answer
Power Reducing Formula
Power Reducing Formula
Did you use the power reduction formula to rewrite the expression? ۔
6 sins 4x.
And
(Sin x 2x) (cos 2x)
I do a lot of my work on double angle, structure and half angle formulas. I'm crying here because there's not a single problem I can solve! Help :(
updateWhy did you change from 4 to 6? I got a little involved in the process.
Ener, this is not the right answer (from the first book). Any other ideas?
It only requires a little knowledge.
6 sins 4x = 6 (sin²x) (sin²x)
sin²x = (1 cos 2x) / 2, then alternate and multiply. You get a term other than sin²x, so use the formula M. It is done there.
Sin 2 x = (1cos2x) / 2.
6 sins 4x = (6/4) (1cos2x) 2 = (3/2) (1 2cos2x + cos 2 (2x))
Enter cos 2 (2x) = (1 + cos4x) / 2 in the answer.
Power Reducing Formula
Power Reducing Formula
Did you use the power reduction formula to rewrite the expression? 3
6 sins 4x
And
(Sin 2x) (cos 2x)
I've done a lot of work on double, low and half angle formulas. I'm crying here because there isn't a single problem I can solve! Help :(
updateWhy did you change from 4 to 6? I got a little involved in the process.
Ener, this is not the right answer (from the first book). Any other ideas?
It only requires a little knowledge.
6 sins 4x = 6 (sin²x) (sin²x)
sin²x = (1 cos 2x) / 2, then alternate and multiply. You get a term other than sin²x, so use the formula em. It is done there.
The formula for reducing power
Sin 2 x = (1cos2x) / 2
6 sins 4x = (6/4) (1cos2x) 2 = (3/2) (1 2cos2x + cos 2 (2x))
And cos 2 (2x) = (1 + cos4x) / 2 in> Enter the answer.