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if n(X)=4 ,n(X x Y ) = 12 ,Then n(Y) = ........
3
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Okay!
if n(X)=4 ,n(X x Y ) = 20 ,Then n(Y x Y) = .......
25
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Okay!
sin (x) =cos (y) ,then sin (x) +cos (y) =....................
2 sin (x) or 2 cos(y)
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f(x) =x+5 ,then f(5)= .............
10
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sin(x) =cos(70) ,the m(<x)= ............
20
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Okay!
f(x) =5 ,then f(3)= ...........
5
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Okay!
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