for an isosceles triangle ABC right angled at A, find sinB cosC+sinC cosB
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Step-by-step explanation:
sinbcosc + sinccosb = 2x^2/Y^2 = 2
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Answer: 1
Step-by-step explanation:ABC is an issolese right angle triangle at A
So ,side c =side b=x
So it's remaining two angles are of 45°
Sin c . Cos b + cos c. Sin b = sin (c+b)
Sin (a+b)=sin90°
So
Sin(c+b)=1
Sin b. Cos b +cos b.sin c =1
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