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If sin2x+sin4x=2sin3x,then x= [EAMCET 1989]
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2sin3xcosx−2sin3x=0, ∴ sin3x=0, cosx=1 12=3h120−h1201+3h214400⇒h=120,40 3x=nπ or x=nπ3 and x=2nπ The second value x=2nπ is included in the value given byx=nπ3.
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Question Text | If sin2x+sin4x=2sin3x,then x= [EAMCET 1989] |
Answer Type | Text solution:1 |
Upvotes | 152 |