(sinA - sinB / cosA + cosB) + (cosA - cosB / sinA + sinB) = 0
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Answered by
63
Hiiiii .....
Cross multiply the eqn .....
(sinA - sinB)(sinA + sinB) + ( cosA - CosB )(cosA + cosB ) / (cosA + cosB)( sinA + sinB)
......
= (sin^2A - sin^2B) + (cos^2A - cos^2B ) / (cosA + cosB)( sinA + sinB) ...
= 0 .....
As (sin^2A + sin^2B =1)..........
Cross multiply the eqn .....
(sinA - sinB)(sinA + sinB) + ( cosA - CosB )(cosA + cosB ) / (cosA + cosB)( sinA + sinB)
......
= (sin^2A - sin^2B) + (cos^2A - cos^2B ) / (cosA + cosB)( sinA + sinB) ...
= 0 .....
As (sin^2A + sin^2B =1)..........
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Answered by
54
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