Is My Wave Superposition Calculation Correct?

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SUMMARY

The discussion centers on the superposition of two waves, specifically y1=3sin(kx-wt) and y2=4cos(kx+wt). The user claims to have derived the resultant wave as y=7 cos(wt+45) sin(kx+45). However, the method described for combining the waves lacks clarity and precision, particularly in applying trigonometric identities. A correct approach involves using the principle of superposition and trigonometric identities to accurately combine the sine and cosine functions.

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moham_87
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could anyone check that for me please

Hiiiiiiiiiii everyone
I've these two waves
y1=3sin(kx-wt)
y2=4cos(kx+wt)
I need to find the resultant wave (y1+y2)
I got that answer:

y= 7 cos(wt+45) sin(kx+45)
is that right?? please if not give me a hint

bye bye
 
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How about giving us some ideas as to HOW you got that and why you think it might be right.
 
here is my EFFORTS

I added the amplidtude mathematically
then using trigonometric rules i added the two "sin" and "cos" functions

sin(a)+sin(b)=sin((a-b)/2)cos((a+b)/2)...or something like that

BYE BYE...i still need to know if my answer is true

bYYyYyyyYYyYYyYE
 

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