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agillogly
 2 years ago
Find all solutions to the equation sin(3x)cosxsinx cos(3x)=0 on the interval [0,2pi]
a x=0,pi/4,pi/2,3pi/4,pi,3pi/2,2pi
b x=0,pi/2,pi,3pi/2,2pi
c x=0,pi,2pi
d x=0,pi/2,3pi/2
agillogly
 2 years ago
Find all solutions to the equation sin(3x)cosxsinx cos(3x)=0 on the interval [0,2pi] a x=0,pi/4,pi/2,3pi/4,pi,3pi/2,2pi b x=0,pi/2,pi,3pi/2,2pi c x=0,pi,2pi d x=0,pi/2,3pi/2

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dpaInc
 2 years ago
Best ResponseYou've already chosen the best response.1dw:1339981024363:dw i just used the rule from sin(A  B) can you take it from here?

agillogly
 2 years ago
Best ResponseYou've already chosen the best response.0no :/ Im not sure how to figure out any other solutions.

dpaInc
 2 years ago
Best ResponseYou've already chosen the best response.1so you have 4 solutions within [0, 2pi]... but 2pi works also so you actually have 5 solutions...

agillogly
 2 years ago
Best ResponseYou've already chosen the best response.0Okay, I see how you did that. It makes sense now. Thanks.
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