Question

16.If sin(X+Y)=cos(X-Y) =1 then
X=Y=?​

Answer 1

Answer:

X=Y= 45 degrees

Step-by-step explanation:

Sin(x+y) =Cos(x-y) =1

Sin 90 degrees =1

Therefore, x+y = 90

Cos 0 degrees = 1

Therefore, x-y=1

Therefore,

While adding

x+y=90

x-y=0

We get

x = y = 45 degrees........

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