pLZZZZ Explain
If sin2x=1
Then what is the no. of solutions it has in [ -3∩ , 4∩ ] ?
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UP 0 DOWN 0 0 4
4 Answers
eragon24 _Retired
·2009-10-25 10:59:40
jus draw the graph is y=sin^2 x
and y=1
u will get 7 points of intersection...so 7 soln
$ourav @@@ -- WILL Never give
·2009-10-25 10:59:55
sin x is either 1 or -1...solutions at -5∩/2,-3∩/2,-∩/2,∩/2,3∩/2,5∩/2,7∩/2