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OpenStudy (aravindg):
3If f(x) = cos (log x), then f(x2)F(y2)-1 / 2[ f (x2 / y2) ] has the value of (a) -2 (b) -1 9c) 1 / 2 (d) none of these
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OpenStudy (anonymous):
(d)
OpenStudy (aravindg):
how?ow?
OpenStudy (anonymous):
The variables, x and y, have no given or implied numeric values that I can see.
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