cosec ( 2A + 3B ) = √2 and cos ( 2/3A + 4B ) = √3/2 find A and B which are acute angles
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Step-by-step explanation:
cosec (2A +3B) =cosec 45
on comparing both side
2A + 3B = 45 ..... (i)
Cos (2/3A + 4B) = cos 30
on comparing both side
2/3A + 4B =30 ........ (ii)
by solving equation (i) and (ii)
B = 5
A = 15
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