please answer this question
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write question these are trignometer
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Step-by-step explanation:
apply componendo and divendo we get
2xsinb/2ysina
xsinb/ysina
cosasinb/cosbsina
we should apply again componendo and dividendo beacuse we applied only on one
sin(a+b)/sin(b-a)
-sin(a+b)/sin(a-b)
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