CBSE Class 11-science Answered
FIND
Asked by | 27 Aug, 2008, 09:17: PM
Expert Answer
sin ( a+b) =1 => a+b= 90o and sin(a-b) =1/2 => a-b = 30o
this is possible only if 0a,b90o since 0a+b180o and -90oa-b90o
so a= 60o and b = 30o
tan(a+2b) = tan(120o ) = -31/2
tan (2a+b) = tan(150o ) = -1/ 31/2
Answered by | 08 Sep, 2008, 06:16: PM
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