Grade 11Trigonometry
sinx+sin2x=2
find,cos4x+cos2x
sinx+sin2x=2
find,cos4x+cos2x
1 Answer
Jayesh Arun Kadam
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sinx+sin2x=2 |
is only possible when x is element of (4n+1)∏/2 (n E R)
At all this points cosx =0
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cos4x+cos2x=0 |
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