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Standard XII
Mathematics
Implicit Differentiation
11. If cos(a-...
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11. If cos(a-b)-1=0,show that cos a+cos b=0 and sin a +sin b=0
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Show that
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B
−
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+
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if and only if
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Show that:
(i) sin A sin (B − C) + sin B sin (C − A) + sin C sin (A − B) = 0
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If sinA=sinB and cosA=cosB, then
[EAMCET 1994]
